Q: What is the sum of all factors of the number 261,063,378 excluding 261,063,378?

A: 320,391,342

Why is 320,391,342 the sum of all factors of 261,063,378, excluding 261,063,378?

The factors of the number 261,063,378 are: 1, 2, 3, 6, 9, 18, 27, 54, 461, 922, 1383, 2766, 4149, 8298, 10487, 12447, 20974, 24894, 31461, 62922, 94383, 188766, 283149, 566298, 4834507, 9669014, 14503521, 29007042, 43510563, 87021126, 130531689, 261063378.

If you add them up, you will get the total of 261,063,698. Now subtract 261,063,378 to get 320,391,342