The factors of the number 400,466,220 are: 1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 29, 30, 33, 35, 42, 44, 49, 55, 58, 60, 61, 66, 70, 77, 84, 87, 98, 105, 110, 116, 122, 132, 140, 145, 147, 154, 165, 174, 183, 196, 203, 210, 220, 231, 244, 245, 290, 294, 305, 308, 319, 330, 343, 348, 366, 385, 406, 420, 427, 435, 462, 490, 539, 580, 588, 609, 610, 638, 660, 671, 686, 732, 735, 770, 812, 854, 870, 915, 924, 957, 980, 1015, 1029, 1078, 1155, 1218, 1220, 1276, 1281, 1342, 1372, 1421, 1470, 1540, 1595, 1617, 1708, 1715, 1740, 1769, 1830, 1914, 2013, 2030, 2058, 2135, 2156, 2233, 2310, 2436, 2562, 2684, 2695, 2842, 2940, 2989, 3045, 3190, 3234, 3355, 3430, 3538, 3660, 3773, 3828, 4026, 4060, 4116, 4263, 4270, 4466, 4620, 4697, 4785, 5124, 5145, 5307, 5390, 5684, 5978, 6090, 6380, 6405, 6468, 6699, 6710, 6860, 7076, 7105, 7546, 8052, 8085, 8526, 8540, 8845, 8932, 8967, 9394, 9570, 9947, 10065, 10290, 10614, 10780, 11165, 11319, 11956, 12180, 12383, 12810, 13398, 13420, 14091, 14210, 14945, 15092, 15631, 16170, 17052, 17690, 17934, 18788, 18865, 19140, 19459, 19894, 20130, 20580, 20923, 21228, 21315, 22330, 22638, 23485, 24766, 25620, 26535, 26796, 28182, 28420, 29841, 29890, 31262, 32340, 32879, 33495, 35380, 35868, 37149, 37730, 38918, 39788, 40260, 41846, 42630, 44660, 44835, 45276, 46893, 46970, 49532, 49735, 53070, 56364, 56595, 58377, 59682, 59780, 61915, 62524, 62769, 65758, 66990, 70455, 74298, 75460, 77836, 78155, 83692, 85260, 86681, 89670, 93786, 93940, 97295, 98637, 99470, 104615, 106140, 109417, 113190, 116754, 119364, 123830, 125538, 131516, 133980, 136213, 140910, 148596, 149205, 156310, 164395, 173362, 179340, 185745, 187572, 194590, 197274, 198940, 209230, 218834, 226380, 230153, 233508, 234465, 247660, 251076, 260043, 272426, 281820, 291885, 298410, 312620, 313845, 328251, 328790, 346724, 371490, 389180, 394548, 408639, 418460, 433405, 437668, 460306, 468930, 493185, 520086, 544852, 547085, 583770, 596820, 606767, 627690, 656502, 657580, 681065, 690459, 742980, 817278, 866810, 920612, 937860, 953491, 986370, 1040172, 1094170, 1150765, 1167540, 1213534, 1255380, 1300215, 1313004, 1362130, 1380918, 1634556, 1641255, 1733620, 1820301, 1906982, 1972740, 2043195, 2188340, 2301530, 2427068, 2600430, 2724260, 2761836, 2860473, 3033835, 3282510, 3452295, 3640602, 3813964, 4086390, 4603060, 4767455, 5200860, 5720946, 6067670, 6565020, 6674437, 6904590, 7281204, 8172780, 9101505, 9534910, 11441892, 12135340, 13348874, 13809180, 14302365, 18203010, 19069820, 20023311, 26697748, 28604730, 33372185, 36406020, 40046622, 57209460, 66744370, 80093244, 100116555, 133488740, 200233110, 400466220.
If you add them up, you will get the total of 1,499,904,000.