Q: What is the sum of all factors of the number 1,531,060 excluding 1,531,060?

Why is 1,772,660 the sum of all factors of 1,531,060, excluding 1,531,060?

The factors of the number 1,531,060 are: 1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 2069, 4138, 8276, 10345, 20690, 41380, 76553, 153106, 306212, 382765, 765530, 1531060.

If you add them up, you will get the total of 1,531,061. Now subtract 1,531,060 to get 1,772,660

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