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Cf. A008472 (sopf).
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Numbers n such that n is are divisible by the sum of its their distinct prime factors (A008472).
Name edited by Michel Marcus, Jul 15 2020
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Numbers n such that n is divisible by the sum of its distinct prime factors (A008472).
Jean-Marie de Koninck, Florian Luca, Integers divisible by the sum of their prime factors, Mathematika 52:1-2 (2005), pp. 69-77.
Jean-Marie de Koninck, Florian Luca, <a href="http://dx.doi.org/10.1112/S0025579300000346">Integers divisible by the sum of their prime factors</a>, Mathematika 52:1-2 (2005), pp. 69-77.
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