Q: What is the sum of all factors of the number 217,990 excluding 217,990?
A: 174,410
The factors of the number 217,990 are: 1, 2, 5, 10, 21799, 43598, 108995, 217990.
If you add them up, you will get the total of 218,164. Now subtract 217,990 to get 174,410