Q: What is the sum of all factors of the number 664,020,665 excluding 664,020,665?

A: 330,947,911

Why is 330,947,911 the sum of all factors of 664,020,665, excluding 664,020,665?

The factors of the number 664,020,665 are: 1, 5, 7, 11, 35, 55, 77, 385, 1163, 1483, 5815, 7415, 8141, 10381, 12793, 16313, 40705, 51905, 63965, 81565, 89551, 114191, 447755, 570955, 1724729, 8623645, 12073103, 18972019, 60365515, 94860095, 132804133, 664020665.

If you add them up, you will get the total of 664,020,995. Now subtract 664,020,665 to get 330,947,911