Q: What is the sum of all factors of the number 645,561,739 excluding 645,561,739?
A: 53,661
The factors of the number 645,561,739 are: 1, 18211, 35449, 645561739.
If you add them up, you will get the total of 645,561,792. Now subtract 645,561,739 to get 53,661