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- In [[number theory]] the '''sum-of-divisors function''' of a positive integer, denoted σ(''n''), is the sum of all the positive1 KB (172 words) - 04:53, 1 November 2013
- 125 bytes (19 words) - 13:14, 5 December 2008
- Auto-populated based on [[Special:WhatLinksHere/Sum-of-divisors function]]. Needs checking by a human.553 bytes (71 words) - 20:41, 11 January 2010
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- In [[number theory]] the '''sum-of-divisors function''' of a positive integer, denoted σ(''n''), is the sum of all the positive1 KB (172 words) - 04:53, 1 November 2013
- {{rpl|Sum-of-divisors function}}149 bytes (17 words) - 05:19, 26 September 2013
- == Definition in terms of the sum-of-divisors function == Perfect numbers can be succinctly defined using the [[sum-of-divisors function]] <math> \sigma(n) </math>. If <math>n</math> is a counting number, then <2 KB (397 words) - 12:24, 14 May 2008
- * The average order of σ(''n''), the [[Sum-of-divisors function|sum of divisors]] of ''n'', is <math> \frac{\pi^2}{6} n</math>;2 KB (254 words) - 08:27, 19 December 2011
- Auto-populated based on [[Special:WhatLinksHere/Sum-of-divisors function]]. Needs checking by a human.553 bytes (71 words) - 20:41, 11 January 2010
- * [[Sum-of-divisors function]]255 bytes (24 words) - 21:27, 2 April 2008
- {{r|Sum-of-divisors function}}2 KB (262 words) - 19:07, 11 January 2010
- {{r|Sum-of-divisors function}}884 bytes (139 words) - 17:00, 6 December 2008
- * [[Sum-of-divisors function]]22 KB (3,297 words) - 05:02, 8 March 2024