Abstract
This is a translation from Latin to English of Euler's ``De numeris
amicabilibus'' (``On amicable numbers''), E100 in the Enestrom index. Euler
discusses the earlier work that had been done by European mathematicians on
amicable numbers, and gives a general rule for finding pairs of amicable pairs.
He provides a table of 30 amicable pairs, some of which are made with his rule
but some of which were not. Prior to this paper, it is believed that for
European mathematicians the only known amicable pairs were 220 and 284 from
Pythagoras, 17,296 and 18,416 by Fermat, and 9,363,584 and 9,437,056 by
Descartes.
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