完全数（Perfect number），又称完美数或完备数，是一些特殊的自然数。它所有的真因子（即除了自身以外...
完全数,又称完美数或完数(Perfect Number),它是指这样的一些特殊的自然数,它所有的真因子(即除了自身以外的约数)的和,恰好等于它本身。例如,6就是一个完全数,是因为6 = 1 + 2 + 3。请编写一个判断完全数的函数IsPerfect(),然后判断从键盘输入的整数是否是完全数。注意:1没有真因子,所以不是完全数。 代...
13. A perfect number is an integer that is equal to the sum of all of its divisors, except itself. For example, 28 is a perfect number because 28 =1 +2 +4 +7 +14.Which of the following is a perfect number?(A)10(B)13(C)6(D)8(E)9 ...
1A perfect number is a positive integer which is equal to the sum of its proper positive divisors. For example, 6 is a perfect number since 6=1+2+3. Which of the following is a perfect munber?A.29B.101C.121D.496 2【题目】A perfect number is a positive integer which is equalto ...
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What is a perfect number?Perfect Numbers:Numbers are a fascinating subject in mathematics. Not just because of how they work together, but also because of the various properties that some individual numbers hold. Because of these different properties, we have a plethora of different types of ...
A six-digit number, it is a perfect square number, and the last three digits are all 4. Such six-digit numbers have . 相关知识点: 试题来源: 解析 3 Because the last three digits are all 4 and the smallest number of perfect square number is 382=1444, the last three digits of such...
This is followed by the perfect numbers 496 and 8128.Sample Solution:Python Code:# Define a function named 'perfect_number' that checks if a number 'n' is a perfect number def perfect_number(n): # Initialize a variable 'sum' to store the sum of factors of 'n' sum = 0 # Iterate ...
Simple and relatively harmless household objects can draw extreme fear responses from a bird. (阅读理解B篇) 11. draw sth from sb / sth 引起某人 / 物某种反应; Simple and relatively harmless household objects can draw extreme fear responses from a bird. ...