Q: What is the sum of all factors of the number 1,898,200 excluding 1,898,200?

Why is 2,515,580 the sum of all factors of 1,898,200, excluding 1,898,200?

The factors of the number 1,898,200 are: 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 9491, 18982, 37964, 47455, 75928, 94910, 189820, 237275, 379640, 474550, 949100, 1898200.

If you add them up, you will get the total of 1,898,202. Now subtract 1,898,200 to get 2,515,580

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