Q: What is the sum of all factors of the number 128,509,134 excluding 128,509,134?

Why is 148,279,938 the sum of all factors of 128,509,134, excluding 128,509,134?

The factors of the number 128,509,134 are: 1, 2, 3, 6, 13, 26, 39, 78, 1647553, 3295106, 4942659, 9885318, 21418189, 42836378, 64254567, 128509134.

If you add them up, you will get the total of 128,509,282. Now subtract 128,509,134 to get 148,279,938

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