Q: What is the sum of all factors of the number 77,390 excluding 77,390?
A: 65,170
The factors of the number 77,390 are: 1, 2, 5, 10, 71, 109, 142, 218, 355, 545, 710, 1090, 7739, 15478, 38695, 77390.
If you add them up, you will get the total of 77,455. Now subtract 77,390 to get 65,170