Q: What is the sum of all factors of the number 283,320 excluding 283,320?

A: 638,640

Why is 638,640 the sum of all factors of 283,320, excluding 283,320?

The factors of the number 283,320 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 787, 1574, 2361, 3148, 3935, 4722, 6296, 7083, 7870, 9444, 11805, 14166, 15740, 18888, 23610, 28332, 31480, 35415, 47220, 56664, 70830, 94440, 141660, 283320.

If you add them up, you will get the total of 283,958. Now subtract 283,320 to get 638,640