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Search: id:A064162
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| A064162 |
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Least abundant number divisible by n. |
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+0
1
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| 12, 12, 12, 12, 20, 12, 42, 24, 18, 20, 66, 12, 78, 42, 30, 48, 102, 18, 114, 20, 42, 66, 138, 24, 100, 78, 54, 56, 174, 30, 186, 96, 66, 102, 70, 36, 222, 114, 78, 40, 246, 42, 258, 88, 90, 138, 282, 48, 196, 100, 102, 104, 318, 54, 220, 56, 114, 174, 354, 60, 366
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OFFSET
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1,1
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EXAMPLE
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The first eight abundant numbers are 12, 18, 20, 24, 30, 36, 40 and 42. But only the last one is divisible by 7. Therefore a(7) = 42.
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MATHEMATICA
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Do[ k = 11; While[ m = DivisorSigma[ 1, k ] - 2k; m <= 0 || Mod[ k, n ] != 0, k++ ]; Print[ k ], {n, 1, 75} ]
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CROSSREFS
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Sequence in context: A010851 A123896 A122878 this_sequence A028996 A113595 A109053
Adjacent sequences: A064159 A064160 A064161 this_sequence A064163 A064164 A064165
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KEYWORD
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easy,nonn
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AUTHOR
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Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 15 2001
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