Q: What is the sum of all factors of the number 2,720 excluding 2,720?
A: 4,084
The factors of the number 2,720 are: 1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720.
If you add them up, you will get the total of 2,724. Now subtract 2,720 to get 4,084