Q: What is the sum of all factors of the number 561,440 excluding 561,440?

A: 946,780

Why is 946,780 the sum of all factors of 561,440, excluding 561,440?

The factors of the number 561,440 are: 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 40, 44, 55, 58, 80, 88, 110, 116, 121, 145, 160, 176, 220, 232, 242, 290, 319, 352, 440, 464, 484, 580, 605, 638, 880, 928, 968, 1160, 1210, 1276, 1595, 1760, 1936, 2320, 2420, 2552, 3190, 3509, 3872, 4640, 4840, 5104, 6380, 7018, 9680, 10208, 12760, 14036, 17545, 19360, 25520, 28072, 35090, 51040, 56144, 70180, 112288, 140360, 280720, 561440.

If you add them up, you will get the total of 562,386. Now subtract 561,440 to get 946,780