Q: What is the sum of all factors of the number 256,399 excluding 256,399?
A: 48,969
The factors of the number 256,399 are: 1, 11, 13, 121, 143, 163, 1573, 1793, 2119, 19723, 23309, 256399.
If you add them up, you will get the total of 256,447. Now subtract 256,399 to get 48,969