Q: What is the sum of all factors of the number 210,693,690 excluding 210,693,690?

A: 351,156,870

Why is 351,156,870 the sum of all factors of 210,693,690, excluding 210,693,690?

The factors of the number 210,693,690 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 780347, 1560694, 2341041, 3901735, 4682082, 7023123, 7803470, 11705205, 14046246, 21069369, 23410410, 35115615, 42138738, 70231230, 105346845, 210693690.

If you add them up, you will get the total of 210,694,041. Now subtract 210,693,690 to get 351,156,870