Q: What is the sum of all factors of the number 206,103,765 excluding 206,103,765?

A: 172,224,555

Why is 172,224,555 the sum of all factors of 206,103,765, excluding 206,103,765?

The factors of the number 206,103,765 are: 1, 3, 5, 7, 15, 21, 35, 105, 269, 807, 1345, 1883, 4035, 5649, 7297, 9415, 21891, 28245, 36485, 51079, 109455, 153237, 255395, 766185, 1962893, 5888679, 9814465, 13740251, 29443395, 41220753, 68701255, 206103765.

If you add them up, you will get the total of 206,103,937. Now subtract 206,103,765 to get 172,224,555