Q: What is the sum of all factors of the number 645,560,260 excluding 645,560,260?

 A: 712,832,636

Why is 712,832,636 the sum of all factors of 645,560,260, excluding 645,560,260?

The factors of the number 645,560,260 are: 1, 2, 4, 5, 10, 20, 503, 1006, 2012, 2515, 5030, 10060, 64171, 128342, 256684, 320855, 641710, 1283420, 32278013, 64556026, 129112052, 161390065, 322780130, 645560260.

If you add them up, you will get the total of 645,560,972. Now subtract 645,560,260 to get 712,832,636


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