翻訳と辞書 Words near each other ・ Defiant Imagination ・ Defiant Indoctrination ・ Defiant Order ・ Defiant Theatre ・ Defibaugh Tavern ・ Defibrator ・ Defibrillation ・ Defibrillation threshold ・ Defibrotide ・ Deficiency ・ Deficiency (medicine) ・ Deficiency judgment ・ Deficiency of RbAp48 protein and memory loss ・ Deficiency of the interleukin-1–receptor antagonist ・ Deficiency payments ・ Deficient number ・ Deficit ・ Deficit commission ・ Deficit hawk ・ Deficit irrigation ・ Deficit reduction ・ Deficit Reduction Act ・ Deficit Reduction Act of 1984 ・ Deficit Reduction Act of 2005 ・ Deficit reduction in the United States ・ Deficit round robin ・ Deficit spending ・ Deficits in attention, motor control and perception ・ Defilada ・ Defile Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Deficient number ： ウィキペディア英語版 Deficient number In number theory, a deficient or deficient number is a number ''n'' for which the sum of divisors ''σ''(''n'')<2''n'', or, equivalently, the sum of proper divisors (or aliquot sum) ''s''(''n'')<''n''. The value 2''n'' − ''σ''(''n'') (or ''n'' − ''s''(''n'')) is called the number's deficiency. ==Examples== The first few deficient numbers are: :1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 21, 22, 23, 25, 26, 27, 29, 31, 32, 33, 34, 35, 37, 38, 39, 41, 43, 44, 45, 46, 47, 49, 50, ... As an example, consider the number 21. Its divisors are 1, 3, 7 and 21, and their sum is 32. Because 32 is less than 2 × 21, the number 21 is deficient. Its deficiency is 2 × 21 − 32 = 10. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Deficient number」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.