Q: What is the sum of all factors of the number 630 excluding 630?
A: 1,242
The factors of the number 630 are: 1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630.
If you add them up, you will get the total of 631. Now subtract 630 to get 1,242