Q: What is the sum of all factors of the number 638,879 excluding 638,879?
A: 39,649
The factors of the number 638,879 are: 1, 31, 37, 557, 1147, 17267, 20609, 638879.
If you add them up, you will get the total of 638,918. Now subtract 638,879 to get 39,649