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A218428
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Numbers k for which sigma(k)/k - 1/7 is an integer.
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5
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7, 56, 3724, 333312, 939466752, 88884432000, 95088913920, 183694492800, 85621850496000, 120354474240000, 176951824358400, 239555577824640, 268015772344320, 2056513874688000, 9918742759833600, 93442741956748800, 149180517860774400, 230762478968017920
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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 29/7. - 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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