Definition:Abundant Number/Definition 3

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Definition

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


$n$ is abundant if and only if it is smaller than its aliquot sum.


Sequence

The sequence of abundant numbers begins:

$12, 18, 20, 24, 30, 36, 40, 42, 48, 54, 56, 60, 66, 70, 72, 78, 80, 84, 88, 90, 96, 100, 102, 104, 108, 112, 114, 120, \ldots$


Also see


Sources