Q: What is the sum of all factors of the number 261,201,742 excluding 261,201,742?

Why is 130,674,890 the sum of all factors of 261,201,742, excluding 261,201,742?

The factors of the number 261,201,742 are: 1, 2, 7691, 15382, 16981, 33962, 130600871, 261201742.

If you add them up, you will get the total of 261,201,872. Now subtract 261,201,742 to get 130,674,890

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