Q: What is the sum of all factors of the number 155,400,200 excluding 155,400,200?

Why is 205,905,730 the sum of all factors of 155,400,200, excluding 155,400,200?

The factors of the number 155,400,200 are: 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 777001, 1554002, 3108004, 3885005, 6216008, 7770010, 15540020, 19425025, 31080040, 38850050, 77700100, 155400200.

If you add them up, you will get the total of 155,400,405. Now subtract 155,400,200 to get 205,905,730

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