Amicable Pair/Examples/2620-2924

Example of Amicable Pair
$2620$ and $2924$ are the $3$rd amicable pair:
 * $\map \sigma {2620} = \map \sigma {2924} = 5544 = 2620 + 2924$

Proof
Let $\map s n$ denote the aliquot sum of $n$.

By definition:
 * $\map s n = \map \sigma n - n$

where $\map \sigma n$ denotes the $\sigma$ function.

Thus: