id:A008473 - OEIS Search Results

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If n = Product (p_j^k_j) then a(n) = Product (p_j + k_j).

+0
4

1, 3, 4, 4, 6, 12, 8, 5, 5, 18, 12, 16, 14, 24, 24, 6, 18, 15, 20, 24, 32, 36, 24, 20, 7, 42, 6, 32, 30, 72, 32, 7, 48, 54, 48, 20, 38, 60, 56, 30, 42, 96, 44, 48, 30, 72, 48, 24, 9, 21, 72, 56, 54, 18, 72, 40, 80, 90, 60, 96, 62, 96, 40, 8, 84, 144, 68, 72, 96, 144, 72, 25, 74, 114 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`Multiplicative with a(p^e) = p+e. - David W. Wilson (davidwwilson(AT)comcast.net), Aug 01, 2001.`
	MATHEMATICA	`Array[Times @@ Total /@ FactorInteger[ # ] &, 80] - Joseph Biberstine (jrbibers(AT)indiana.edu), Jul 28 2006`
	CROSSREFS	`Sequence in context: A100692 A089640 A086659 this_sequence A069088 A019462 A078071` `Adjacent sequences: A008470 A008471 A008472 this_sequence A008474 A008475 A008476`
	KEYWORD	`nonn,mult`
	AUTHOR	`Olivier Gerard (ogerard(AT)ext.jussieu.fr)`
	EXTENSIONS	`More terms from Joseph Biberstine (jrbibers(AT)indiana.edu), Jul 28 2006`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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