Q: What is the sum of all factors of the number 721,160 excluding 721,160?

A: 1,074,340

Why is 1,074,340 the sum of all factors of 721,160, excluding 721,160?

The factors of the number 721,160 are: 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 149, 220, 242, 298, 440, 484, 596, 605, 745, 968, 1192, 1210, 1490, 1639, 2420, 2980, 3278, 4840, 5960, 6556, 8195, 13112, 16390, 18029, 32780, 36058, 65560, 72116, 90145, 144232, 180290, 360580, 721160.

If you add them up, you will get the total of 721,161. Now subtract 721,160 to get 1,074,340