Q: What is the sum of all factors of the number 645,667,160 excluding 645,667,160?

 A: 807,084,040

Why is 807,084,040 the sum of all factors of 645,667,160, excluding 645,667,160?

The factors of the number 645,667,160 are: 1, 2, 4, 5, 8, 10, 20, 40, 16141679, 32283358, 64566716, 80708395, 129133432, 161416790, 322833580, 645667160.

If you add them up, you will get the total of 645,667,967. Now subtract 645,667,160 to get 807,084,040


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