Q: What is the sum of all factors of the number 19,620 excluding 19,620?
A: 40,440
The factors of the number 19,620 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 981, 1090, 1308, 1635, 1962, 2180, 3270, 3924, 4905, 6540, 9810, 19620.
If you add them up, you will get the total of 19,660. Now subtract 19,620 to get 40,440