Is 1560 a deficient number and what is its deficiency?

Is 1560 a deficient number?

Here we will explain and calculate if 1560 is a deficient number and its deficiency if applicable.

1560 is a deficient number if the sum of its proper divisors is less than 1560.

The sum of its proper divisors is calculated as follows: 1 + 2 + 3 + 4 + 5 + 6 + 8 + 10 + 12 + 13 + 15 + 20 + 24 + 26 + 30 + 39 + 40 + 52 + 60 + 65 + 78 + 104 + 120 + 130 + 156 + 195 + 260 + 312 + 390 + 520 + 780 = 3480.

3480 is not less than 1560. Therefore, 1560 is not a deficient number.

The deficiency of 1560 is 1560 minus the sum of its proper divisors. Thus, the deficiency of 1560 is 1560 - 3480 = No Deficiency

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