WebJul 8, 2016 · We can have at most four different prime divisors, as you said,because otherwise n > 2 ⋅ 3 ⋅ 5 ⋅ 7 ⋅ 11 = 2310. Also, we may assume that we have the smallest primes, i.e., n = 2 e 1 3 e 2 5 e 3 7 e 4 . So your method works well, and we obtain, after only cheking a few cases, d ( 1680) = d ( 2 4 ⋅ 3 ⋅ 5 ⋅ 7) = 5 ⋅ 2 ⋅ 2 ⋅ 2 = 40 as the maximum. WebJun 29, 2024 · (1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 8, 8, 8, 10, 10, 10, 12, 12, 12, 15, 15, 15, 20, 20, 20, 24, 24, 24, 30, 30, 30, 40, 40, 40, 60, 60, 60, 120, 120, 120) = 48 / 3 = 16 …
How many integral divisors does the number 120 have? - Brainly
The tables below list all of the divisors of the numbers 1 to 1000. A divisor of an integer n is an integer m, for which n/m is again an integer (which is necessarily also a divisor of n). For example, 3 is a divisor of 21, since 21/7 = 3 (and therefore 7 is also a divisor of 21). If m is a divisor of n then so is −m. The tables below only list positive divisors. WebFeb 24, 2009 · 120 = 2^3 x 3 x 5 No. of divisors = (3+1)*(1+1)*(1+1) = 4*2*2 = 16 Choose B.-BM- dialectical journal the house on mango street
How many of the positive divisors of 120 are also multiples of 4 not
WebMar 22, 2014 · It is easy to see why this formula works from a combinatorial point of view, the divisors of N are also of the form p 1 b 1 p 2 b 2 p 3 b 3... p n b n, with b i ≤ a i for every i, but this time some (or all) of the b i can be 0, this mean we can pick a i + 1 values for b i, from 0 to a i. In your case 7! = 2 4 3 2 5 1 7 1 so it has ( 4 + 1 ... Web120 is divisible by the number of primes below it, 30 in this case. However, there is no integer which has 120 as the sum of its proper divisors, making 120 an untouchable number. The sum of Euler's totient function over the first nineteen integers is 120. As 120 is a factorial and one less than a square ( WebOct 27, 2012 · How many numbers between 1-10 are divisors of 48? 1,2,3,4,6,8 are divisors of 48, so there are 6 divisors of 48 between 1 and 10 How many divisors does 30 have? dialectical materialism related people