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01.On Even Integers Not of the Form 2k + σ(m) (pp. 263-268)
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On Even Integers Not of the Form 2k + σ(m) (pp. 263-268) $45.00
Authors:  Florian Luca and Florin Nicolae
We show that there is a positive proportion of even numbers not of the form 2k + σ(m) for any positive integers k and m, where σ(m)is the sum of divisors function. 

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On Even Integers Not of the Form 2<sup>k</sup> + σ(m) (pp. 263-268)