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A218413
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Numbers k for which sigma(k)/k - 6/7 is an integer.
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5
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168, 11172, 217854, 228480, 446880, 220093440, 5228496000, 10805558400, 14091504577920, 583455456460800, 2583890834482298880, 5510058011880428160, 224050000769667072000, 1022756201136515973120, 1314073124731389718080, 2661277331943365990400
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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 with abundancy 13/7. - 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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