The factors of the number 172,003,440 are: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 43, 48, 56, 60, 70, 80, 84, 86, 105, 112, 120, 129, 140, 168, 172, 210, 215, 240, 258, 280, 301, 336, 344, 420, 430, 516, 560, 602, 645, 688, 840, 860, 903, 1032, 1204, 1290, 1505, 1680, 1720, 1806, 2064, 2381, 2408, 2580, 3010, 3440, 3612, 4515, 4762, 4816, 5160, 6020, 7143, 7224, 9030, 9524, 10320, 11905, 12040, 14286, 14448, 16667, 18060, 19048, 23810, 24080, 28572, 33334, 35715, 36120, 38096, 47620, 50001, 57144, 66668, 71430, 72240, 83335, 95240, 100002, 102383, 114288, 133336, 142860, 166670, 190480, 200004, 204766, 250005, 266672, 285720, 307149, 333340, 400008, 409532, 500010, 511915, 571440, 614298, 666680, 716681, 800016, 819064, 1000020, 1023830, 1228596, 1333360, 1433362, 1535745, 1638128, 2000040, 2047660, 2150043, 2457192, 2866724, 3071490, 3583405, 4000080, 4095320, 4300086, 4914384, 5733448, 6142980, 7166810, 8190640, 8600172, 10750215, 11466896, 12285960, 14333620, 17200344, 21500430, 24571920, 28667240, 34400688, 43000860, 57334480, 86001720, 172003440.
If you add them up, you will get the total of 623,817,216.