Q: What is the sum of all factors of the number 215,870 excluding 215,870?
A: 172,714
The factors of the number 215,870 are: 1, 2, 5, 10, 21587, 43174, 107935, 215870.
If you add them up, you will get the total of 216,042. Now subtract 215,870 to get 172,714