Q: What is the sum of all factors of the number 172,978 excluding 172,978?
A: 106,490
The factors of the number 172,978 are: 1, 2, 13, 26, 6653, 13306, 86489, 172978.
If you add them up, you will get the total of 173,084. Now subtract 172,978 to get 106,490