Q: What is the sum of all factors of the number 256,689 excluding 256,689?
A: 126,881
The factors of the number 256,689 are: 1, 3, 9, 27, 81, 3169, 9507, 28521, 85563, 256689.
If you add them up, you will get the total of 256,815. Now subtract 256,689 to get 126,881