Hyperperfect numbers with more than two different prime factors : (preprint)

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Publisher	Stichting Mathematisch Centrum
Series	Stichting Mathematisch Centrum. Numerieke Wiskunde
Organisation	Numerieke Wiskunde
Citation APA APA Style APA-ALL Style AAA Style Cell Style Chicago Style Harvard Style IEEE Style MLA Style Nature Style Vancouver Style American-Institute-of-Physics Style Council-of-Science-Editors Style BibTex Format Endnote Format RIS Format CSL Format DOIs only Format	te Riele, H. (1980). Hyperperfect numbers with more than two different prime factors : (preprint). In Stichting Mathematisch Centrum. Numerieke Wiskunde (87/80). Stichting Mathematisch Centrum.

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