The factors of the number 746,801,640 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 43, 45, 52, 54, 60, 65, 72, 78, 86, 90, 104, 108, 117, 120, 129, 130, 135, 156, 172, 180, 195, 215, 216, 234, 258, 260, 270, 312, 344, 351, 360, 387, 390, 430, 468, 516, 520, 540, 559, 585, 645, 702, 774, 780, 860, 936, 1032, 1080, 1118, 1161, 1170, 1237, 1290, 1404, 1548, 1560, 1677, 1720, 1755, 1935, 2236, 2322, 2340, 2474, 2580, 2795, 2808, 3096, 3354, 3510, 3711, 3870, 4472, 4644, 4680, 4948, 5031, 5160, 5590, 5805, 6185, 6708, 7020, 7422, 7740, 8385, 9288, 9896, 10062, 11133, 11180, 11610, 12370, 13416, 14040, 14844, 15093, 15480, 16081, 16770, 18555, 20124, 22266, 22360, 23220, 24740, 25155, 29688, 30186, 32162, 33399, 33540, 37110, 40248, 44532, 46440, 48243, 49480, 50310, 53191, 55665, 60372, 64324, 66798, 67080, 74220, 75465, 80405, 89064, 96486, 100620, 106382, 111330, 120744, 128648, 133596, 144729, 148440, 150930, 159573, 160810, 166995, 192972, 201240, 212764, 222660, 241215, 265955, 267192, 289458, 301860, 319146, 321620, 333990, 385944, 425528, 434187, 445320, 478719, 482430, 531910, 578916, 603720, 638292, 643240, 667980, 691483, 723645, 797865, 868374, 957438, 964860, 1063820, 1157832, 1276584, 1335960, 1382966, 1436157, 1447290, 1595730, 1736748, 1914876, 1929720, 2074449, 2127640, 2170935, 2393595, 2765932, 2872314, 2894580, 3191460, 3457415, 3473496, 3829752, 4148898, 4341870, 4787190, 5531864, 5744628, 5789160, 6223347, 6382920, 6914830, 7180785, 8297796, 8683740, 9574380, 10372245, 11489256, 12446694, 13829660, 14361570, 16595592, 17367480, 18670041, 19148760, 20744490, 24893388, 27659320, 28723140, 31116735, 37340082, 41488980, 49786776, 57446280, 62233470, 74680164, 82977960, 93350205, 124466940, 149360328, 186700410, 248933880, 373400820, 746801640.
If you add them up, you will get the total of 2,745,388,800.