Q: What is the sum of all factors of the number 425,920 excluding 425,920?

A: 689,648

Why is 689,648 the sum of all factors of 425,920, excluding 425,920?

The factors of the number 425,920 are: 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 160, 176, 220, 242, 320, 352, 440, 484, 605, 704, 880, 968, 1210, 1331, 1760, 1936, 2420, 2662, 3520, 3872, 4840, 5324, 6655, 7744, 9680, 10648, 13310, 19360, 21296, 26620, 38720, 42592, 53240, 85184, 106480, 212960, 425920.

If you add them up, you will get the total of 426,609. Now subtract 425,920 to get 689,648