id:A159271 - OEIS Search Results

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Numbers with abundancy index sigma(n)/n = 11/2.

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17116004505600, 75462255348480000, 6219051710415667200, 14031414189615513600, 352444116692828160000, 835095457414213632000, 59485231752222033838080, 64031599488357236736000 (list; graph; listen)

	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: A103575 A068747 A160935 this_sequence A064589 A086644 A011527` `Adjacent sequences: A159268 A159269 A159270 this_sequence A159272 A159273 A159274`
	KEYWORD	`nonn`
	AUTHOR	`M. F. Hasler (MHasler(AT)univ-ag.fr), Apr 21 2009`

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Last modified February 9 11:24 EST 2010. Contains 172296 sequences.

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