Q: What is the sum of all factors of the number 31,096,280 excluding 31,096,280?

Why is 40,764,760 the sum of all factors of 31,096,280, excluding 31,096,280?

The factors of the number 31,096,280 are: 1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 21011, 42022, 84044, 105055, 168088, 210110, 420220, 777407, 840440, 1554814, 3109628, 3887035, 6219256, 7774070, 15548140, 31096280.

If you add them up, you will get the total of 31,096,320. Now subtract 31,096,280 to get 40,764,760

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