Q: What is the sum of all factors of the number 725,463,765 excluding 725,463,765?

A: 636,190,191

Why is 636,190,191 the sum of all factors of 725,463,765, excluding 725,463,765?

The factors of the number 725,463,765 are: 1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 169, 195, 507, 585, 845, 1521, 2535, 7605, 95393, 286179, 476965, 858537, 1240109, 1430895, 3720327, 4292685, 6200545, 11160981, 16121417, 18601635, 48364251, 55804905, 80607085, 145092753, 241821255, 725463765.

If you add them up, you will get the total of 725,464,401. Now subtract 725,463,765 to get 636,190,191