id:A051279 - OEIS Search Results

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n=k/d(k) has exactly 2 solutions, where d(k) = number of divisors of k.

+0
8

1, 2, 5, 7, 8, 11, 13, 16, 17, 19, 23, 24, 28, 29, 31, 37, 41, 43, 44, 47, 48, 52, 53, 56, 59, 61, 67, 68, 71, 73, 76, 79, 80, 81, 83, 84, 88, 89, 92, 97, 101, 103, 104, 107, 109, 113, 116, 120, 124, 127, 131, 132, 136, 137, 139, 148, 149, 151, 152, 154, 156, 157, 163, 164 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`It appears that there are exactly 2 numbers k, 40 and 60, with k/d(k)=5.`
	CROSSREFS	`Cf. A033950, A036763, A051278, A051280, A051346.` `Sequence in context: A032784 A047268 A039580 this_sequence A111199 A138671 A032724` `Adjacent sequences: A051276 A051277 A051278 this_sequence A051280 A051281 A051282`
	KEYWORD	`nonn,easy,nice`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), R. K. Guy, David W. Wilson (davidwwilson(AT)comcast.net)`

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

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