Q: What is the sum of all factors of the number 311,321,330 excluding 311,321,330?

A: 289,241,614

Why is 289,241,614 the sum of all factors of 311,321,330, excluding 311,321,330?

The factors of the number 311,321,330 are: 1, 2, 5, 10, 23, 37, 46, 74, 115, 185, 230, 370, 851, 1702, 4255, 8510, 36583, 73166, 182915, 365830, 841409, 1353571, 1682818, 2707142, 4207045, 6767855, 8414090, 13535710, 31132133, 62264266, 155660665, 311321330.

If you add them up, you will get the total of 311,321,619. Now subtract 311,321,330 to get 289,241,614