Q: What is the sum of all factors of the number 430,780 excluding 430,780?

A: 669,956

Why is 669,956 the sum of all factors of 430,780, excluding 430,780?

The factors of the number 430,780 are: 1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 181, 238, 340, 362, 476, 595, 724, 905, 1190, 1267, 1810, 2380, 2534, 3077, 3620, 5068, 6154, 6335, 12308, 12670, 15385, 21539, 25340, 30770, 43078, 61540, 86156, 107695, 215390, 430780.

If you add them up, you will get the total of 431,449. Now subtract 430,780 to get 669,956