Quasiamicable Pair
Let 
be the Divisor Function of 
. Then two numbers and 
are a quasiamicable pair if
The first few are (48, 75), (140, 195), (1050, 1575), (1648, 1925), ... (Sloane's A005276). Quasiamicable numbers are sometimes called Betrothed Numbers or Reduced Amicable Pairs.See also Amicable Pair
References
Beck, W. E. and Najar, R. M. ``More Reduced Amicable Pairs.'' Fib. Quart. 15, 331-332, 1977. Guy, R. K. ``Quasi-Amicable or Betrothed Numbers.'' §B5 in Unsolved Problems in Number Theory, 2nd ed. New York: Springer-Verlag, pp. 59-60, 1994. Hagis, P. and Lord, G. ``Quasi-Amicable Numbers.'' Math. Comput. 31, 608-611, 1977. Sloane, N. J. A. SequenceA005276/M5291in ``An On-Line Version of the Encyclopedia of Integer Sequences.''http://www.research.att.com/~njas/sequences/eisonline.html and Sloane, N. J. A. and Plouffe, S.The Encyclopedia of Integer Sequences. San Diego: Academic Press, 1995.
- Pearson-Cunningham Function
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- p-Element
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