The factors of the number 320,343,120 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 43, 45, 48, 54, 60, 72, 80, 86, 90, 108, 120, 129, 135, 144, 172, 180, 215, 216, 240, 258, 270, 344, 360, 387, 430, 432, 516, 540, 645, 688, 720, 774, 860, 1032, 1080, 1161, 1290, 1548, 1720, 1935, 2064, 2160, 2322, 2580, 3096, 3440, 3449, 3870, 4644, 5160, 5805, 6192, 6898, 7740, 9288, 10320, 10347, 11610, 13796, 15480, 17245, 18576, 20694, 23220, 27592, 30960, 31041, 34490, 41388, 46440, 51735, 55184, 62082, 68980, 82776, 92880, 93123, 103470, 124164, 137960, 148307, 155205, 165552, 186246, 206940, 248328, 275920, 296614, 310410, 372492, 413880, 444921, 465615, 496656, 593228, 620820, 741535, 744984, 827760, 889842, 931230, 1186456, 1241640, 1334763, 1483070, 1489968, 1779684, 1862460, 2224605, 2372912, 2483280, 2669526, 2966140, 3559368, 3724920, 4004289, 4449210, 5339052, 5932280, 6673815, 7118736, 7449840, 8008578, 8898420, 10678104, 11864560, 13347630, 16017156, 17796840, 20021445, 21356208, 26695260, 32034312, 35593680, 40042890, 53390520, 64068624, 80085780, 106781040, 160171560, 320343120.
If you add them up, you will get the total of 1,129,392,000.