Q: What is the sum of all factors of the number 209,900 excluding 209,900?
A: 245,800
The factors of the number 209,900 are: 1, 2, 4, 5, 10, 20, 25, 50, 100, 2099, 4198, 8396, 10495, 20990, 41980, 52475, 104950, 209900.
If you add them up, you will get the total of 210,145. Now subtract 209,900 to get 245,800