Q: What is the sum of all factors of the number 424,121,440 excluding 424,121,440?

 A: 642,854,624

Why is 642,854,624 the sum of all factors of 424,121,440, excluding 424,121,440?

The factors of the number 424,121,440 are: 1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 241, 272, 340, 482, 544, 647, 680, 964, 1205, 1294, 1360, 1928, 2410, 2588, 2720, 3235, 3856, 4097, 4820, 5176, 6470, 7712, 8194, 9640, 10352, 10999, 12940, 16388, 19280, 20485, 20704, 21998, 25880, 32776, 38560, 40970, 43996, 51760, 54995, 65552, 81940, 87992, 103520, 109990, 131104, 155927, 163880, 175984, 219980, 311854, 327760, 351968, 439960, 623708, 655520, 779635, 879920, 1247416, 1559270, 1759840, 2494832, 2650759, 3118540, 4989664, 5301518, 6237080, 10603036, 12474160, 13253795, 21206072, 24948320, 26507590, 42412144, 53015180, 84824288, 106030360, 212060720, 424121440.

If you add them up, you will get the total of 424,122,082. Now subtract 424,121,440 to get 642,854,624


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