A lower bound for odd triperfects
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- by Walter E. Beck and Rudolph M. Najar PDF
- Math. Comp. 38 (1982), 249-251 Request permission
Abstract:
If n is odd and $\sigma (n) = 3n$, then n exceeds ${10^{50}}$.References
- Hans-Joachim Kanold, Über mehrfach vollkommene Zahlen. II, J. Reine Angew. Math. 197 (1957), 82–96 (German). MR 84514, DOI 10.1515/crll.1957.197.82
Additional Information
- © Copyright 1982 American Mathematical Society
- Journal: Math. Comp. 38 (1982), 249-251
- MSC: Primary 10A20
- DOI: https://doi.org/10.1090/S0025-5718-1982-0637303-9
- MathSciNet review: 637303