Q: What is the sum of all factors of the number 86,990 excluding 86,990?
A: 69,610
The factors of the number 86,990 are: 1, 2, 5, 10, 8699, 17398, 43495, 86990.
If you add them up, you will get the total of 87,059. Now subtract 86,990 to get 69,610