Q: What is the sum of all factors of the number 402,636 excluding 402,636?

A: 655,764

Why is 655,764 the sum of all factors of 402,636, excluding 402,636?

The factors of the number 402,636 are: 1, 2, 3, 4, 6, 12, 13, 26, 29, 39, 52, 58, 78, 87, 89, 116, 156, 174, 178, 267, 348, 356, 377, 534, 754, 1068, 1131, 1157, 1508, 2262, 2314, 2581, 3471, 4524, 4628, 5162, 6942, 7743, 10324, 13884, 15486, 30972, 33553, 67106, 100659, 134212, 201318, 402636.

If you add them up, you will get the total of 403,291. Now subtract 402,636 to get 655,764