Harmonic divisor number

2021-05-23 08:16:48

In mathematics, a harmonic divisor number, or Ore number, is a positive integer whose divisors have a harmonic mean that is an integer. The first few harmonic divisor numbers are1, 6, 28, 140, 270, 496, 672, 1638, 2970, 6200, 8128, 8190.

In mathematics, a harmonic divisor number, or Ore number, is a positive integer whose divisors have a harmonic mean that is an integer. The first few harmonic divisor numbers are1, 6, 28, 140, 270, 496, 672, 1638, 2970, 6200, 8128, 8190.
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