Q: What is the sum of all factors of the number 31,520 excluding 31,520?
A: 43,324
The factors of the number 31,520 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 6304, 7880, 15760, 31520.
If you add them up, you will get the total of 31,563. Now subtract 31,520 to get 43,324