Aliquot Sequences
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Scan day: 17 February 2014 UTC
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Description: Aliquot sequences arise in iterating the sum-of-divisors function s. Bosma has calculated tables up to start value 50,000 and 80 digits.
Aliquot sequences arise in iterating the sum-of-divisors function s, which assigns to a positive integer the sum of its proper divisors (i.e., excluding the number itself). An aliquot sequence thus starts with a positive integer n, followed by s(n), then s(s(n)), etc.
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