Q: What is the sum of all factors of the number 206,561,505 excluding 206,561,505?
A: 138,306,975
The factors of the number 206,561,505 are: 1, 3, 5, 15, 23, 69, 115, 345, 598729, 1796187, 2993645, 8980935, 13770767, 41312301, 68853835, 206561505.
If you add them up, you will get the total of 206,561,643. Now subtract 206,561,505 to get 138,306,975