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A159271 Numbers with abundancy index sigma(n)/n = 11/2. 5
17116004505600, 75462255348480000, 6219051710415667200, 14031414189615513600, 352444116692828160000, 835095457414213632000, 59485231752222033838080, 64031599488357236736000 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

Walter Nissen, Abundancy : Some Resources

G. P. Michon and M. Marcus, Hemiperfect numbers of abundancy 11/2 (table with factorizations). [From Gerard P. Michon (g.michon(AT)att.net), Jul 01 2009]

CROSSREFS

Sequence in context: A172719 A068747 A160935 * A064589 A086644 A011527

Adjacent sequences:  A159268 A159269 A159270 * A159272 A159273 A159274

KEYWORD

nonn

AUTHOR

M. F. Hasler (www.univ-ag.fr/~mhasler), Apr 21 2009

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Last modified February 12 03:59 EST 2012. Contains 205360 sequences.