Q: What is the sum of all factors of the number 256,904 excluding 256,904?
A: 253,396
The factors of the number 256,904 are: 1, 2, 4, 8, 17, 34, 68, 136, 1889, 3778, 7556, 15112, 32113, 64226, 128452, 256904.
If you add them up, you will get the total of 257,157. Now subtract 256,904 to get 253,396