Q: What is the sum of all factors of the number 1,261,425 including 1,261,425?

Why is 2,308,880 the sum of all factors of 1,261,425, including 1,261,425?

The factors of the number 1,261,425 are: 1, 3, 5, 11, 15, 25, 33, 55, 75, 121, 139, 165, 275, 363, 417, 605, 695, 825, 1529, 1815, 2085, 3025, 3475, 4587, 7645, 9075, 10425, 16819, 22935, 38225, 50457, 84095, 114675, 252285, 420475, 1261425.

If you add them up, you will get the total of 2,308,880.

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