Q: What is the sum of all factors of the number 215,120 excluding 215,120?
A: 285,220
The factors of the number 215,120 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2689, 5378, 10756, 13445, 21512, 26890, 43024, 53780, 107560, 215120.
If you add them up, you will get the total of 215,405. Now subtract 215,120 to get 285,220