On amicable and sociable numbers

Author:
Henri Cohen

Journal:
Math. Comp. **24** (1970), 423-429

MSC:
Primary 10.03

MathSciNet review:
0271004

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Abstract: An exhaustive search has yielded 236 amicable pairs of which the lesser number is smaller than , 57 pairs being new.

It has also yielded 9 new sociable groups of order 10 or less, of which the lesser number is smaller than ; the 9 sociable groups are all of order 4.

The sequence of iterates of the function starting with 276 has also been extended to 119 terms.

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DOI:
http://dx.doi.org/10.1090/S0025-5718-1970-0271004-6

Keywords:
Amicable numbers,
sociable numbers,
aliquot series

Article copyright:
© Copyright 1970
American Mathematical Society