Category:Highly Abundant Numbers

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This category contains results about Highly Abundant Numbers.
Definitions specific to this category can be found in Definitions/Highly Abundant Numbers.

Let $n \in \Z_{>0}$ be a positive integer.

Then $n$ is highly abundant if and only if:

$\forall m \in \Z_{>0}, m < n: \map {\sigma_1} m < \map {\sigma_1} n$

where $\sigma_1$ denotes the divisor sum function of $n$.

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Pages in category "Highly Abundant Numbers"

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