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A067238
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Numbers n such that sigma(n) = bigomega(n) * phi(n).
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1
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35, 248, 357, 1672, 3135, 3596, 3956, 5396, 8636, 20026, 23374, 24244, 25714, 25758, 29512, 33915, 35074, 39585, 51688, 55154, 56134, 61344, 107156, 142240, 157586, 208280, 282680, 316274, 373065, 383656, 389732, 427924, 435435, 470764
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OFFSET
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1,1
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LINKS
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MAPLE
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PROG
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(PARI) isok(n) = sigma(n) == bigomega(n)*eulerphi(n); \\ Michel Marcus, Nov 21 2013
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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