Q: What is the sum of all factors of the number 1,504 excluding 1,504?
A: 1,520
The factors of the number 1,504 are: 1, 2, 4, 8, 16, 32, 47, 94, 188, 376, 752, 1504.
If you add them up, you will get the total of 1,505. Now subtract 1,504 to get 1,520