Q: What is the sum of all factors of the number 215,625 excluding 215,625?
A: 159,351
The factors of the number 215,625 are: 1, 3, 5, 15, 23, 25, 69, 75, 115, 125, 345, 375, 575, 625, 1725, 1875, 2875, 3125, 8625, 9375, 14375, 43125, 71875, 215625.
If you add them up, you will get the total of 215,784. Now subtract 215,625 to get 159,351