Q: What is the sum of all factors of the number 123,555,225 excluding 123,555,225?

Why is 87,770,535 the sum of all factors of 123,555,225, excluding 123,555,225?

The factors of the number 123,555,225 are: 1, 3, 5, 15, 25, 29, 75, 87, 145, 435, 725, 2175, 56807, 170421, 284035, 852105, 1420175, 1647403, 4260525, 4942209, 8237015, 24711045, 41185075, 123555225.

If you add them up, you will get the total of 123,555,312. Now subtract 123,555,225 to get 87,770,535

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