Q: What is the sum of all factors of the number 87,428 excluding 87,428?
A: 79,564
The factors of the number 87,428 are: 1, 2, 4, 11, 22, 44, 1987, 3974, 7948, 21857, 43714, 87428.
If you add them up, you will get the total of 87,507. Now subtract 87,428 to get 79,564