Q: What is the sum of all factors of the number 215,780 excluding 215,780?
A: 237,400
The factors of the number 215,780 are: 1, 2, 4, 5, 10, 20, 10789, 21578, 43156, 53945, 107890, 215780.
If you add them up, you will get the total of 216,017. Now subtract 215,780 to get 237,400