Q: What is the sum of all factors of the number 231,415,128 excluding 231,415,128?

 A: 523,375,272

Why is 523,375,272 the sum of all factors of 231,415,128, excluding 231,415,128?

The factors of the number 231,415,128 are: 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 29, 36, 42, 56, 58, 63, 71, 72, 84, 87, 116, 126, 142, 168, 174, 203, 213, 223, 232, 252, 261, 284, 348, 406, 426, 446, 497, 504, 522, 568, 609, 639, 669, 696, 812, 852, 892, 994, 1044, 1218, 1278, 1338, 1491, 1561, 1624, 1704, 1784, 1827, 1988, 2007, 2059, 2088, 2436, 2556, 2676, 2982, 3122, 3654, 3976, 4014, 4118, 4473, 4683, 4872, 5112, 5352, 5964, 6177, 6244, 6467, 7308, 8028, 8236, 8946, 9366, 11928, 12354, 12488, 12934, 14049, 14413, 14616, 15833, 16056, 16472, 17892, 18531, 18732, 19401, 24708, 25868, 28098, 28826, 31666, 35784, 37062, 37464, 38802, 43239, 45269, 47499, 49416, 51736, 56196, 57652, 58203, 63332, 74124, 77604, 86478, 90538, 94998, 110831, 112392, 115304, 116406, 126664, 129717, 135807, 142497, 148248, 155208, 172956, 181076, 189996, 221662, 232812, 259434, 271614, 284994, 332493, 345912, 362152, 379992, 407421, 443324, 459157, 465624, 518868, 543228, 569988, 664986, 814842, 886648, 918314, 997479, 1037736, 1086456, 1139976, 1329972, 1377471, 1629684, 1836628, 1994958, 2659944, 2754942, 3214099, 3259368, 3673256, 3989916, 4132413, 5509884, 6428198, 7979832, 8264826, 9642297, 11019768, 12856396, 16529652, 19284594, 25712792, 28926891, 33059304, 38569188, 57853782, 77138376, 115707564, 231415128.

If you add them up, you will get the total of 231,415,651. Now subtract 231,415,128 to get 523,375,272


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