Q: What is the sum of all factors of the number 100,990 excluding 100,990?
A: 80,810
The factors of the number 100,990 are: 1, 2, 5, 10, 10099, 20198, 50495, 100990.
If you add them up, you will get the total of 101,070. Now subtract 100,990 to get 80,810