Q: What is the sum of all factors of the number 81,020 excluding 81,020?
A: 89,164
The factors of the number 81,020 are: 1, 2, 4, 5, 10, 20, 4051, 8102, 16204, 20255, 40510, 81020.
If you add them up, you will get the total of 81,109. Now subtract 81,020 to get 89,164