The factors of the number 404,312,400 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 23, 24, 25, 30, 36, 38, 40, 45, 46, 48, 50, 57, 60, 69, 72, 75, 76, 80, 90, 92, 95, 100, 114, 115, 120, 138, 144, 150, 152, 171, 180, 184, 190, 200, 207, 225, 228, 230, 240, 257, 276, 285, 300, 304, 342, 345, 360, 368, 380, 400, 414, 437, 450, 456, 460, 475, 514, 552, 570, 575, 600, 684, 690, 720, 760, 771, 828, 855, 874, 900, 912, 920, 950, 1028, 1035, 1104, 1140, 1150, 1200, 1285, 1311, 1368, 1380, 1425, 1520, 1542, 1656, 1710, 1725, 1748, 1800, 1840, 1900, 2056, 2070, 2185, 2280, 2300, 2313, 2570, 2622, 2736, 2760, 2850, 3084, 3312, 3420, 3450, 3496, 3600, 3800, 3855, 3933, 4112, 4140, 4275, 4370, 4560, 4600, 4626, 4883, 5140, 5175, 5244, 5520, 5700, 5911, 6168, 6425, 6555, 6840, 6900, 6992, 7600, 7710, 7866, 8280, 8550, 8740, 9200, 9252, 9766, 10280, 10350, 10488, 10925, 11400, 11565, 11822, 12336, 12850, 13110, 13680, 13800, 14649, 15420, 15732, 16560, 17100, 17480, 17733, 18504, 19275, 19532, 19665, 20560, 20700, 20976, 21850, 22800, 23130, 23644, 24415, 25700, 26220, 27600, 29298, 29555, 30840, 31464, 32775, 34200, 34960, 35466, 37008, 38550, 39064, 39330, 41400, 43700, 43947, 46260, 47288, 48830, 51400, 52440, 53199, 57825, 58596, 59110, 61680, 62928, 65550, 68400, 70932, 73245, 77100, 78128, 78660, 82800, 87400, 87894, 88665, 92520, 94576, 97660, 98325, 102800, 104880, 106398, 112309, 115650, 117192, 118220, 122075, 131100, 141864, 146490, 147775, 154200, 157320, 174800, 175788, 177330, 185040, 195320, 196650, 212796, 219735, 224618, 231300, 234384, 236440, 244150, 262200, 265995, 283728, 292980, 295550, 308400, 314640, 336927, 351576, 354660, 366225, 390640, 393300, 425592, 439470, 443325, 449236, 462600, 472880, 488300, 524400, 531990, 561545, 585960, 591100, 673854, 703152, 709320, 732450, 786600, 851184, 878940, 886650, 898472, 925200, 976600, 1010781, 1063980, 1098675, 1123090, 1171920, 1182200, 1329975, 1347708, 1418640, 1464900, 1573200, 1684635, 1757880, 1773300, 1796944, 1953200, 2021562, 2127960, 2197350, 2246180, 2364400, 2659950, 2695416, 2807725, 2929800, 3369270, 3515760, 3546600, 4043124, 4255920, 4394700, 4492360, 5053905, 5319900, 5390832, 5615450, 5859600, 6738540, 7093200, 8086248, 8423175, 8789400, 8984720, 10107810, 10639800, 11230900, 13477080, 16172496, 16846350, 17578800, 20215620, 21279600, 22461800, 25269525, 26954160, 33692700, 40431240, 44923600, 50539050, 67385400, 80862480, 101078100, 134770800, 202156200, 404312400.
If you add them up, you will get the total of 1,547,133,120.