Q: What is the sum of all factors of the number 311,680 excluding 311,680?

 A: 434,960

Why is 434,960 the sum of all factors of 311,680, excluding 311,680?

The factors of the number 311,680 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 487, 640, 974, 1948, 2435, 3896, 4870, 7792, 9740, 15584, 19480, 31168, 38960, 62336, 77920, 155840, 311680.

If you add them up, you will get the total of 312,114. Now subtract 311,680 to get 434,960


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