Q: What is the sum of all factors of the number 640,524,135 excluding 640,524,135?
A: 386,758,905
The factors of the number 640,524,135 are: 1, 3, 5, 15, 421, 1263, 2105, 6315, 101429, 304287, 507145, 1521435, 42701609, 128104827, 213508045, 640524135.
If you add them up, you will get the total of 640,524,521. Now subtract 640,524,135 to get 386,758,905