The factors of the number 131,383,680 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 80, 82, 96, 120, 123, 128, 160, 164, 192, 205, 240, 246, 320, 328, 384, 410, 480, 492, 615, 640, 656, 820, 960, 984, 1230, 1312, 1640, 1669, 1920, 1968, 2460, 2624, 3280, 3338, 3936, 4920, 5007, 5248, 6560, 6676, 7872, 8345, 9840, 10014, 13120, 13352, 15744, 16690, 19680, 20028, 25035, 26240, 26704, 33380, 39360, 40056, 50070, 53408, 66760, 68429, 78720, 80112, 100140, 106816, 133520, 136858, 160224, 200280, 205287, 213632, 267040, 273716, 320448, 342145, 400560, 410574, 534080, 547432, 640896, 684290, 801120, 821148, 1026435, 1068160, 1094864, 1368580, 1602240, 1642296, 2052870, 2189728, 2737160, 3204480, 3284592, 4105740, 4379456, 5474320, 6569184, 8211480, 8758912, 10948640, 13138368, 16422960, 21897280, 26276736, 32845920, 43794560, 65691840, 131383680.
If you add them up, you will get the total of 429,256,800.