Q: What is the sum of all factors of the number 83,780 excluding 83,780?
A: 97,660
The factors of the number 83,780 are: 1, 2, 4, 5, 10, 20, 59, 71, 118, 142, 236, 284, 295, 355, 590, 710, 1180, 1420, 4189, 8378, 16756, 20945, 41890, 83780.
If you add them up, you will get the total of 83,877. Now subtract 83,780 to get 97,660