Q: What is the sum of all factors of the number 9,780,820 excluding 9,780,820?

A: 14,935,340

Why is 14,935,340 the sum of all factors of 9,780,820, excluding 9,780,820?

The factors of the number 9,780,820 are: 1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 3677, 7354, 14708, 18385, 25739, 36770, 51478, 69863, 73540, 102956, 128695, 139726, 257390, 279452, 349315, 489041, 514780, 698630, 978082, 1397260, 1956164, 2445205, 4890410, 9780820.

If you add them up, you will get the total of 9,780,834. Now subtract 9,780,820 to get 14,935,340