Q: What is the sum of all factors of the number 711,280 excluding 711,280?

A: 1,043,072

Why is 1,043,072 the sum of all factors of 711,280, excluding 711,280?

The factors of the number 711,280 are: 1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 523, 680, 1046, 1360, 2092, 2615, 4184, 5230, 8368, 8891, 10460, 17782, 20920, 35564, 41840, 44455, 71128, 88910, 142256, 177820, 355640, 711280.

If you add them up, you will get the total of 711,281. Now subtract 711,280 to get 1,043,072