Q: What is the sum of all factors of the number 15,655,100 excluding 15,655,100?

A: 18,717,700

Why is 18,717,700 the sum of all factors of 15,655,100, excluding 15,655,100?

The factors of the number 15,655,100 are: 1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 356, 445, 890, 1759, 1780, 2225, 3518, 4450, 7036, 8795, 8900, 17590, 35180, 43975, 87950, 156551, 175900, 313102, 626204, 782755, 1565510, 3131020, 3913775, 7827550, 15655100.

If you add them up, you will get the total of 15,655,118. Now subtract 15,655,100 to get 18,717,700