Quizzes for review
The mathematician suspected that the rare hyperperfect number they had discovered would shed new light on the structure of divisor sums.
See correct answer
The mathematician suspected that the rare hyperperfect number they had discovered would shed new light on the structure of divisor sums.
音声機能が動作しない場合はこちらをご確認ください
Related words
hyperperfect number
Noun
Japanese Meaning
数学・数論における用語で、ある正の整数 n が「hyperperfect number」であるとは、ある正整数 k が存在して、n = 1 + k(σ(n) - n - 1) の関係を満たす場合を指します。ここで、σ(n) は n の正の約数の和です。
Related Words
Word Edit Setting
- Users who have edit permission for words - All Users
- Screen new word creation
- Screen word edits
- Screen word deletion
- Screen the creation of new headword that may be duplicates
- Screen changing entry name
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Sentence Edit Setting
- Users who have edit permission for sentences - All Users
- Screen sentence deletion
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Quiz Edit Setting
- Users who have edit permission for quizzes - All Users
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
