Q: What is the sum of all factors of the number 87,280 excluding 87,280?
A: 115,832
The factors of the number 87,280 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1091, 2182, 4364, 5455, 8728, 10910, 17456, 21820, 43640, 87280.
If you add them up, you will get the total of 87,395. Now subtract 87,280 to get 115,832