Q: What is the sum of all factors of the number 66,820 excluding 66,820?
A: 84,884
The factors of the number 66,820 are: 1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 257, 260, 514, 1028, 1285, 2570, 3341, 5140, 6682, 13364, 16705, 33410, 66820.
If you add them up, you will get the total of 66,904. Now subtract 66,820 to get 84,884