Q: What is the sum of all factors of the number 20,064 excluding 20,064?

A: 40,416

Why is 40,416 the sum of all factors of 20,064, excluding 20,064?

The factors of the number 20,064 are: 1, 2, 3, 4, 6, 8, 11, 12, 16, 19, 22, 24, 32, 33, 38, 44, 48, 57, 66, 76, 88, 96, 114, 132, 152, 176, 209, 228, 264, 304, 352, 418, 456, 528, 608, 627, 836, 912, 1056, 1254, 1672, 1824, 2508, 3344, 5016, 6688, 10032, 20064.

If you add them up, you will get the total of 20,104. Now subtract 20,064 to get 40,416