Q: What is the sum of all factors of the number 221,022,220 excluding 221,022,220?

 A: 243,124,484

Why is 243,124,484 the sum of all factors of 221,022,220, excluding 221,022,220?

The factors of the number 221,022,220 are: 1, 2, 4, 5, 10, 20, 11051111, 22102222, 44204444, 55255555, 110511110, 221022220.

If you add them up, you will get the total of 221,022,463. Now subtract 221,022,220 to get 243,124,484


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