Q: What is the sum of all factors of the number 268,840 excluding 268,840?

A: 456,920

Why is 456,920 the sum of all factors of 268,840, excluding 268,840?

The factors of the number 268,840 are: 1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 47, 52, 55, 65, 88, 94, 104, 110, 130, 143, 188, 220, 235, 260, 286, 376, 440, 470, 517, 520, 572, 611, 715, 940, 1034, 1144, 1222, 1430, 1880, 2068, 2444, 2585, 2860, 3055, 4136, 4888, 5170, 5720, 6110, 6721, 10340, 12220, 13442, 20680, 24440, 26884, 33605, 53768, 67210, 134420, 268840.

If you add them up, you will get the total of 269,296. Now subtract 268,840 to get 456,920