Q: What is the sum of all factors of the number 255,561,229 excluding 255,561,229?

A: 81,513,971

Why is 81,513,971 the sum of all factors of 255,561,229, excluding 255,561,229?

The factors of the number 255,561,229 are: 1, 7, 11, 19, 77, 133, 209, 307, 569, 1463, 2149, 3377, 3983, 5833, 6259, 10811, 23639, 40831, 43813, 64163, 75677, 118921, 174683, 449141, 832447, 1222781, 1921513, 3318977, 13450591, 23232839, 36508747, 255561229.

If you add them up, you will get the total of 255,561,310. Now subtract 255,561,229 to get 81,513,971