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A218416
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Numbers k for which sigma(k)/k - 5/9 is an integer.
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6
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117, 3780, 66960, 167400, 406224, 1097280, 6656832, 13035330, 29410290, 4529295360, 27477725184, 88071903612, 1159632322560, 7035102756864, 18554223329280, 22385029489560, 54934276752360, 112562288197632, 125356165141536, 307631949813216, 1317932346931200
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OFFSET
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1,1
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COMMENTS
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Note that there are no terms here with abundancy 23/9 (k=2). - Michel Marcus, Jun 25 2013
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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