Q: What is the sum of all factors of the number 420,124,340 excluding 420,124,340?

 A: 462,136,816

Why is 462,136,816 the sum of all factors of 420,124,340, excluding 420,124,340?

The factors of the number 420,124,340 are: 1, 2, 4, 5, 10, 20, 21006217, 42012434, 84024868, 105031085, 210062170, 420124340.

If you add them up, you will get the total of 420,124,802. Now subtract 420,124,340 to get 462,136,816


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