The factors of the number 312,121,200 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 29, 30, 40, 48, 50, 58, 60, 75, 80, 87, 100, 116, 120, 145, 150, 174, 200, 232, 240, 290, 300, 348, 400, 435, 464, 580, 600, 696, 725, 870, 1160, 1200, 1392, 1450, 1740, 2175, 2320, 2900, 3480, 4350, 5800, 6960, 8700, 8969, 11600, 17400, 17938, 26907, 34800, 35876, 44845, 53814, 71752, 89690, 107628, 134535, 143504, 179380, 215256, 224225, 260101, 269070, 358760, 430512, 448450, 520202, 538140, 672675, 717520, 780303, 896900, 1040404, 1076280, 1300505, 1345350, 1560606, 1793800, 2080808, 2152560, 2601010, 2690700, 3121212, 3587600, 3901515, 4161616, 5202020, 5381400, 6242424, 6502525, 7803030, 10404040, 10762800, 12484848, 13005050, 15606060, 19507575, 20808080, 26010100, 31212120, 39015150, 52020200, 62424240, 78030300, 104040400, 156060600, 312121200.
If you add them up, you will get the total of 1,034,420,400.