The factors of the number 255,543,160 are: 1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 59, 76, 82, 95, 118, 139, 152, 164, 190, 205, 236, 278, 295, 328, 380, 410, 472, 556, 590, 695, 760, 779, 820, 1112, 1121, 1180, 1390, 1558, 1640, 2242, 2360, 2419, 2641, 2780, 3116, 3895, 4484, 4838, 5282, 5560, 5605, 5699, 6232, 7790, 8201, 8968, 9676, 10564, 11210, 11398, 12095, 13205, 15580, 16402, 19352, 21128, 22420, 22796, 24190, 26410, 28495, 31160, 32804, 41005, 44840, 45592, 45961, 48380, 52820, 56990, 65608, 82010, 91922, 96760, 105640, 108281, 113980, 155819, 164020, 183844, 216562, 227960, 229805, 311638, 328040, 336241, 367688, 433124, 459610, 541405, 623276, 672482, 779095, 866248, 919220, 1082810, 1246552, 1344964, 1558190, 1681205, 1838440, 2165620, 2689928, 3116380, 3362410, 4331240, 6232760, 6388579, 6724820, 12777158, 13449640, 25554316, 31942895, 51108632, 63885790, 127771580, 255543160.
If you add them up, you will get the total of 635,040,000.