Q: What is the sum of all factors of the number 61,720 excluding 61,720?
A: 77,240
The factors of the number 61,720 are: 1, 2, 4, 5, 8, 10, 20, 40, 1543, 3086, 6172, 7715, 12344, 15430, 30860, 61720.
If you add them up, you will get the total of 61,797. Now subtract 61,720 to get 77,240