单词	abundant number
释义	abundant number noun : an imperfect number that is less than the sum of all its divisors (as 12) Word History First Known Use 1730, in the meaning defined above
随便看	octodecillion octodecillions octodecimo octodecimos octodon octodont octodrachm octoechos octofoil octogenarian octogenarianism octogenarians octogenary Octogynia octohedrons octoic acid octoid octomerous octometer octonarians octonaries octonarii octonarius octonary octonocular

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