Q: What is the sum of all factors of the number 15,621,680 excluding 15,621,680?

 A: 20,698,912

Why is 20,698,912 the sum of all factors of 15,621,680, excluding 15,621,680?

The factors of the number 15,621,680 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 195271, 390542, 781084, 976355, 1562168, 1952710, 3124336, 3905420, 7810840, 15621680.

If you add them up, you will get the total of 15,621,700. Now subtract 15,621,680 to get 20,698,912


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