The factors of the number 215,171,640 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 47, 54, 60, 72, 81, 90, 94, 108, 120, 135, 141, 157, 162, 180, 188, 216, 235, 243, 270, 282, 314, 324, 360, 376, 405, 423, 470, 471, 486, 540, 564, 628, 648, 705, 729, 785, 810, 846, 940, 942, 972, 1080, 1128, 1215, 1256, 1269, 1410, 1413, 1458, 1570, 1620, 1692, 1880, 1884, 1944, 2115, 2355, 2430, 2538, 2820, 2826, 2916, 3140, 3240, 3384, 3645, 3768, 3807, 4230, 4239, 4710, 4860, 5076, 5640, 5652, 5832, 6280, 6345, 7065, 7290, 7379, 7614, 8460, 8478, 9420, 9720, 10152, 11304, 11421, 12690, 12717, 14130, 14580, 14758, 15228, 16920, 16956, 18840, 19035, 21195, 22137, 22842, 25380, 25434, 28260, 29160, 29516, 30456, 33912, 34263, 36895, 38070, 38151, 42390, 44274, 45684, 50760, 50868, 56520, 57105, 59032, 63585, 66411, 68526, 73790, 76140, 76302, 84780, 88548, 91368, 101736, 110685, 114210, 114453, 127170, 132822, 137052, 147580, 152280, 152604, 169560, 171315, 177096, 190755, 199233, 221370, 228420, 228906, 254340, 265644, 274104, 295160, 305208, 332055, 342630, 381510, 398466, 442740, 456840, 457812, 508680, 531288, 572265, 597699, 664110, 685260, 763020, 796932, 885480, 915624, 996165, 1144530, 1195398, 1328220, 1370520, 1526040, 1593864, 1793097, 1992330, 2289060, 2390796, 2656440, 2988495, 3586194, 3984660, 4578120, 4781592, 5379291, 5976990, 7172388, 7969320, 8965485, 10758582, 11953980, 14344776, 17930970, 21517164, 23907960, 26896455, 35861940, 43034328, 53792910, 71723880, 107585820, 215171640.
If you add them up, you will get the total of 215,172,170. Now subtract 215,171,640 to get 530,866,440