Q: What is the sum of all factors of the number 12,777,200 excluding 12,777,200?

A: 19,743,040

Why is 19,743,040 the sum of all factors of 12,777,200, excluding 12,777,200?

The factors of the number 12,777,200 are: 1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1700, 1879, 3400, 3758, 6800, 7516, 9395, 15032, 18790, 30064, 31943, 37580, 46975, 63886, 75160, 93950, 127772, 150320, 159715, 187900, 255544, 319430, 375800, 511088, 638860, 751600, 798575, 1277720, 1597150, 2555440, 3194300, 6388600, 12777200.

If you add them up, you will get the total of 12,777,219. Now subtract 12,777,200 to get 19,743,040