Q: What is the sum of all factors of the number 1,264 excluding 1,264?
A: 1,216
The factors of the number 1,264 are: 1, 2, 4, 8, 16, 79, 158, 316, 632, 1264.
If you add them up, you will get the total of 1,265. Now subtract 1,264 to get 1,216