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A073396
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The number n equals the product of two numbers: sums of prime factors of n, with and without repetition.
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3
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OFFSET
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1,1
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COMMENTS
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Numbers n such that n = A008472(n)*A001414(n) (= sum of distinct prime factors of n, times sum of prime factors of n with repetition). - M. F. Hasler, May 05 2013
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LINKS
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FORMULA
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EXAMPLE
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MATHEMATICA
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okQ[n_] := n>1 && With[{f = FactorInteger[n]}, n == Total[Times @@@ f]* Total[f[[All, 1]]]];
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CROSSREFS
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KEYWORD
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nonn,full,fini,bref
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AUTHOR
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EXTENSIONS
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Proof that there are no further terms added by Max Alekseyev, May 04 2013
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STATUS
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approved
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