Q: What is the sum of all factors of the number 72,980 excluding 72,980?
A: 85,780
The factors of the number 72,980 are: 1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 205, 356, 410, 445, 820, 890, 1780, 3649, 7298, 14596, 18245, 36490, 72980.
If you add them up, you will get the total of 73,065. Now subtract 72,980 to get 85,780