Q: What is the sum of all factors of the number 689,256 excluding 689,256?

Why is 1,225,944 the sum of all factors of 689,256, excluding 689,256?

The factors of the number 689,256 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 3191, 6382, 9573, 12764, 19146, 25528, 28719, 38292, 57438, 76584, 86157, 114876, 172314, 229752, 344628, 689256.

If you add them up, you will get the total of 689,257. Now subtract 689,256 to get 1,225,944

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