Talk:Sum of divisors: Difference between revisions
→already here as "Proper divisors" ?
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PS: Please, how to print my user name and the time when I write here? --Blek
::You put <nowiki>--~~~~</nowiki> --[[User:Tigerofdarkness|Tigerofdarkness]] ([[User talk:Tigerofdarkness|talk]]) 18:35, 20 December 2020 (UTC)
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