Q: What is the sum of all factors of the number 205,122,250 excluding 205,122,250?

Why is 178,867,070 the sum of all factors of 205,122,250, excluding 205,122,250?

The factors of the number 205,122,250 are: 1, 2, 5, 10, 25, 50, 125, 250, 820489, 1640978, 4102445, 8204890, 20512225, 41024450, 102561125, 205122250.

If you add them up, you will get the total of 205,122,428. Now subtract 205,122,250 to get 178,867,070

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