Q: What is the sum of all factors of the number 13,691,300 excluding 13,691,300?

A: 20,264,860

Why is 20,264,860 the sum of all factors of 13,691,300, excluding 13,691,300?

The factors of the number 13,691,300 are: 1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 19559, 39118, 78236, 97795, 136913, 195590, 273826, 391180, 488975, 547652, 684565, 977950, 1369130, 1955900, 2738260, 3422825, 6845650, 13691300.

If you add them up, you will get the total of 13,691,320. Now subtract 13,691,300 to get 20,264,860