Q: What is the sum of all factors of the number 65,720 excluding 65,720?
A: 89,800
The factors of the number 65,720 are: 1, 2, 4, 5, 8, 10, 20, 31, 40, 53, 62, 106, 124, 155, 212, 248, 265, 310, 424, 530, 620, 1060, 1240, 1643, 2120, 3286, 6572, 8215, 13144, 16430, 32860, 65720.
If you add them up, you will get the total of 65,809. Now subtract 65,720 to get 89,800