The factors of the number 2,140,320 are: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 49, 52, 56, 60, 65, 70, 78, 80, 84, 91, 96, 98, 104, 105, 112, 120, 130, 140, 147, 156, 160, 168, 182, 195, 196, 208, 210, 224, 240, 245, 260, 273, 280, 294, 312, 336, 343, 364, 390, 392, 416, 420, 455, 480, 490, 520, 546, 560, 588, 624, 637, 672, 686, 728, 735, 780, 784, 840, 910, 980, 1029, 1040, 1092, 1120, 1176, 1248, 1274, 1365, 1372, 1456, 1470, 1560, 1568, 1680, 1715, 1820, 1911, 1960, 2058, 2080, 2184, 2352, 2548, 2730, 2744, 2912, 2940, 3120, 3185, 3360, 3430, 3640, 3822, 3920, 4116, 4368, 4459, 4704, 5096, 5145, 5460, 5488, 5880, 6240, 6370, 6860, 7280, 7644, 7840, 8232, 8736, 8918, 9555, 10192, 10290, 10920, 10976, 11760, 12740, 13377, 13720, 14560, 15288, 16464, 17836, 19110, 20384, 20580, 21840, 22295, 23520, 25480, 26754, 27440, 30576, 32928, 35672, 38220, 41160, 43680, 44590, 50960, 53508, 54880, 61152, 66885, 71344, 76440, 82320, 89180, 101920, 107016, 133770, 142688, 152880, 164640, 178360, 214032, 267540, 305760, 356720, 428064, 535080, 713440, 1070160, 2140320.
If you add them up, you will get the total of 8,467,200.