Q: What is the sum of all factors of the number 385,280,688 excluding 385,280,688?

 A: 731,147,856

Why is 731,147,856 the sum of all factors of 385,280,688, excluding 385,280,688?

The factors of the number 385,280,688 are: 1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 43, 48, 52, 78, 83, 86, 104, 129, 156, 166, 172, 173, 208, 249, 258, 312, 332, 344, 346, 498, 516, 519, 559, 624, 664, 688, 692, 996, 1032, 1038, 1079, 1118, 1328, 1384, 1677, 1992, 2064, 2076, 2158, 2236, 2249, 2768, 3237, 3354, 3569, 3984, 4152, 4316, 4472, 4498, 6474, 6708, 6747, 7138, 7439, 8304, 8632, 8944, 8996, 10707, 12948, 13416, 13494, 14276, 14359, 14878, 17264, 17992, 21414, 22317, 25896, 26832, 26988, 28552, 28718, 29756, 35984, 42828, 43077, 44634, 46397, 51792, 53976, 57104, 57436, 59512, 85656, 86154, 89268, 92794, 96707, 107952, 114872, 119024, 139191, 171312, 172308, 178536, 185588, 186667, 193414, 229744, 278382, 290121, 344616, 357072, 371176, 373334, 386828, 556764, 560001, 580242, 617437, 689232, 742352, 746668, 773656, 1113528, 1120002, 1160484, 1234874, 1493336, 1547312, 1852311, 2227056, 2240004, 2320968, 2469748, 2986672, 3704622, 4480008, 4641936, 4939496, 7409244, 8026681, 8960016, 9878992, 14818488, 16053362, 24080043, 29636976, 32106724, 48160086, 64213448, 96320172, 128426896, 192640344, 385280688.

If you add them up, you will get the total of 385,281,419. Now subtract 385,280,688 to get 731,147,856


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