Q: What is the sum of all factors of the number 420,365,454 excluding 420,365,454?

 A: 428,529,138

Why is 428,529,138 the sum of all factors of 420,365,454, excluding 420,365,454?

The factors of the number 420,365,454 are: 1, 2, 3, 6, 103, 206, 309, 618, 680203, 1360406, 2040609, 4081218, 70060909, 140121818, 210182727, 420365454.

If you add them up, you will get the total of 420,365,882. Now subtract 420,365,454 to get 428,529,138


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