Q: What is the sum of all factors of the number 17,720 excluding 17,720?
A: 22,240
The factors of the number 17,720 are: 1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1772, 2215, 3544, 4430, 8860, 17720.
If you add them up, you will get the total of 17,742. Now subtract 17,720 to get 22,240