If the reciprocal sum of all divisors of n is a positive integer, then n is called an Ore s number.
設n是大于1的正整數,如果n的所有約數之倒數和仍是正整數,則稱n是Ore數。
The number of temperament recorded in Huainan Honglie·Tianwen Xun (Chronometer) showed in two different levels: large number and divisor.
天文訓》所記述的律數,呈現兩個不同的層面——大數與約數。
Let d(n) and φ(n) denote the divisor function and Euler s function of n respectively.
對于正整數n,設d(n)、φ(n)分別是n的約數函數和Euler函數。
In this paper, using some elementary methods, we discuss an arithmetic functional equation containing the divisor function, the sum of divisors and the Euler totient function, All even integer solutions of the equation are given, This result solves a problem concerning the generalized perfect numbers.
本文運用初等方法,討論了一個含有約數函數、約數和函數與Euler函數的數論函數方程,給出了該方程的全部偶數解,并且解決了一個有關廣義完全數的問題。
For any positive integer n,let d(n),φ(n) and σ(n) denote the divisor function,Euler\'s totient function and the sum of distinct divisors of n respectively.
對于正整數n,設d(n),φ(n),σ(n)分別是n的約數函數、Euler函數和約數和函數。
The greatest common divisor of 24 and 30 is 6 24.
和 30 的最大公約數為6。
An aliquot part.
整除數,約數能整除的部分
The number of tricks thus bid.
定約墩數這樣競叫時約定的墩方數目
remeasurement contract
按量數付款工程合約
I make the total about &50.
我算總數約為50鎊。
Mini-Hang Seng Index Futures Contract
小型恒生指數期貨合約
approximately(a number,weight,price,etc)
大約(某數量、重量、價格等)
yorkshire skein woolen count
約克夏粗紡毛紗支數
minimum and maximum amount
最小與最大約定數量
I make the total (to be) about 50.
我看總數大約50英鎊.
New York Stock Exchange index
紐約證券交易所指數
Framework Convention on the Protection of National Minorities
保護少數民族框架公約
Rules for rounding off of numerical values
GB/T8170-1987數值修約規則
European Convention for the Protection of National Minorities
歐洲保護少數民族公約
The number was estimated roundly at 500.
該數約略估計為500。
one or more international conventions
一項或數項國際公約
Mini-Hang Seng Index Options Contract
小型恒生指數期權合約
data acquisition and reduction system
數據采集和簡約系統
Copyright ? mingxiaow.com All Rights Reserved. 杭州優配網絡科技有限公司 版權所有 未經書面允許不得轉載、復制信息內容、建立鏡像
本網站內容僅供參考,請以各學校實際情況為主!內容侵權或錯誤投訴:841539661@qq.com 工信部備案號:浙ICP備20019715號