Q: What is the sum of all factors of the number 1,904 excluding 1,904?
A: 2,560
The factors of the number 1,904 are: 1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904.
If you add them up, you will get the total of 1,906. Now subtract 1,904 to get 2,560