Q: What is the sum of all factors of the number 1,340,380 excluding 1,340,380?

 A: 1,572,740

Why is 1,572,740 the sum of all factors of 1,340,380, excluding 1,340,380?

The factors of the number 1,340,380 are: 1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 2311, 4622, 9244, 11555, 23110, 46220, 67019, 134038, 268076, 335095, 670190, 1340380.

If you add them up, you will get the total of 1,340,381. Now subtract 1,340,380 to get 1,572,740


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