Q: What is the sum of all factors of the number 726,221,531 excluding 726,221,531?

A: 156,388,645

Why is 156,388,645 the sum of all factors of 726,221,531, excluding 726,221,531?

The factors of the number 726,221,531 are: 1, 7, 31, 61, 83, 217, 427, 581, 661, 1891, 2573, 4627, 5063, 13237, 18011, 20491, 35441, 40321, 54863, 143437, 156953, 282247, 384041, 1098671, 1249951, 1700753, 3346643, 8749657, 11905271, 23426501, 103745933, 726221531.

If you add them up, you will get the total of 726,221,687. Now subtract 726,221,531 to get 156,388,645