id:A146982 - OEIS Search Results

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Numbers n such that Product{i=1..n}[sigma_0(i)] / n is an integer.

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	OFFSET	`1,2`
	COMMENT	`A066843(n)/A000027(n) is an integer.`
	PROGRAM	`(MAGMA) [ n: n in [1..260] \| &*[ NumberOfDivisors(k): k in [1..n] ] mod n eq 0 ]; [From Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Nov 05 2008]`
	CROSSREFS	`Cf. A066843, A000005, A000027,` `Sequence in context: A071562 A100345 A118363 this_sequence A090958 A074901 A125990` `Adjacent sequences: A146979 A146980 A146981 this_sequence A146983 A146984 A146985`
	KEYWORD	`nonn`
	AUTHOR	`Ctibor O. Zizka (c.zizka(AT)email.cz), Nov 04 2008`
	EXTENSIONS	`Extended beyond a(12) by Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Nov 05 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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