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Aliquot Sequences
- Statistics by Wolfgang Creyaufmueller, including many tables and links to factoring sites and software.
Aliquot Sequences
- Statistics by Wolfgang Creyaufmueller, including many tables and links to factoring sites and software.
Aliquot Sequences
- Statistics by Wolfgang Creyaufmueller, including many tables and links to factoring sites and software.
Aliquot Sequences
- Statistics by Wolfgang Creyaufmueller, including many tables and links to factoring sites and software.
Cubes of Perfection
- From Ivars Peterson's MathTrek column in MAA Online. Curious relationships satisfied by perfect numbers.
John Voight
- Includes his thesis on the nonexistence or otherwise of odd perfect numbers and the use of continued fraction methods.
Multiperfect Number Search
- Sources and binaries of Jason Moxham's searching software.
Multiply Perfect Numbers
- Up-to-date information on multiperfect numbers and searchable database maintained by Achim Flammenkamp.
Perfect Numbers
- A detailed history of the quest for perfect numbers, from Euclid to their present-day Mersenne discoveries.
Perfect Numbers
- A detailed history of the quest for perfect numbers, from Euclid to their present-day Mersenne discoveries.
Perfect, Amicable and Sociable Numbers
- Definitions, links and references of various applications of the sum of divisors function s(n).
Tables of Aliquot Cycles
- Data for various kinds up to 10^12, including unitary, infinitary, exponential, augmented and reduced varieties.
The Perfect Number Journey
- A Mathematics Enrichment Workshop introducing perfect numbers. Lessons and exercises extend over several pages. Aimed at interested middle and high school students.
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