Q: What is the sum of all factors of the number 420,254,138 excluding 420,254,138?

 A: 240,804,142

Why is 240,804,142 the sum of all factors of 420,254,138, excluding 420,254,138?

The factors of the number 420,254,138 are: 1, 2, 29, 58, 73, 146, 2117, 4234, 99257, 198514, 2878453, 5756906, 7245761, 14491522, 210127069, 420254138.

If you add them up, you will get the total of 420,254,378. Now subtract 420,254,138 to get 240,804,142


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