Q: What is the sum of all factors of the number 81,520 excluding 81,520?
A: 108,200
The factors of the number 81,520 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1019, 2038, 4076, 5095, 8152, 10190, 16304, 20380, 40760, 81520.
If you add them up, you will get the total of 81,628. Now subtract 81,520 to get 108,200