Q: What is the sum of all factors of the number 20,172 excluding 20,172?
A: 28,072
The factors of the number 20,172 are: 1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 246, 492, 1681, 3362, 5043, 6724, 10086, 20172.
If you add them up, you will get the total of 20,200. Now subtract 20,172 to get 28,072