id:A009278 - OEIS Search Results

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LCM(d(n), sigma(n)).

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1, 6, 4, 21, 6, 12, 8, 60, 39, 36, 12, 84, 14, 24, 24, 155, 18, 78, 20, 42, 32, 36, 24, 120, 93, 84, 40, 168, 30, 72, 32, 126, 48, 108, 48, 819, 38, 60, 56, 360, 42, 96, 44, 84, 78, 72, 48, 620, 57, 186, 72, 294, 54, 120, 72, 120, 80, 180, 60, 168, 62, 96, 312, 889, 84, 144, 68 (list; graph; listen)

	OFFSET	`1,2`
	MATHEMATICA	`Table[LCM[Length[Divisors[n]], DivisorSigma[1, n]], {n, 1, 100}] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Apr 13 2006`
	CROSSREFS	`Sequence in context: A083581 A160248 A107983 this_sequence A120462 A061592 A081631` `Adjacent sequences: A009275 A009276 A009277 this_sequence A009279 A009280 A009281`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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