Q: What is the sum of all factors of the number 261,213,310 excluding 261,213,310?

A: 220,276,610

Why is 220,276,610 the sum of all factors of 261,213,310, excluding 261,213,310?

The factors of the number 261,213,310 are: 1, 2, 5, 10, 47, 94, 235, 470, 647, 859, 1294, 1718, 3235, 4295, 6470, 8590, 30409, 40373, 60818, 80746, 152045, 201865, 304090, 403730, 555773, 1111546, 2778865, 5557730, 26121331, 52242662, 130606655, 261213310.

If you add them up, you will get the total of 261,213,530. Now subtract 261,213,310 to get 220,276,610