160626866400
domain: N
Appears in sequences
- Colossally abundant numbers: m for which there is a positive exponent epsilon such that sigma(m)/m^{1 + epsilon} >= sigma(k)/k^{1 + epsilon} for all k > 1, so that m attains the maximum value of sigma(m)/m^{1 + epsilon}.at n=15A004490
- Least common multiple of {2, 4, 6, ..., 2n}.at n=26A051426
- Least common multiple of {2, 4, 6, ..., 2n}.at n=27A051426
- Distinct values arising in the sequence of the least common multiples of the first n composite numbers.at n=15A064354
- LCM of the composite numbers between n and 2n (both inclusive).at n=22A073841
- LCM of the composite numbers between n and 2n (both inclusive).at n=23A073841
- Smallest j associated with a(n) in A103277.at n=13A103278
- a(n) is the smallest number m for which none of the first n multiples of m has twice as many divisors as m.at n=24A135060
- a(n) is the smallest number m for which none of the first n multiples of m has twice as many divisors as m.at n=25A135060
- a(n) is the smallest number m for which none of the first n multiples of m has twice as many divisors as m.at n=26A135060
- Numbers that set records for the number by which they must be multiplied to double the number of divisors.at n=17A138570
- a(n) is the smallest integer k such that n*k is the smallest multiple of k with twice as many divisors as k, or 0 if no such number is possible.at n=26A139315
- Duplicate of A073841.at n=21A140813
- Duplicate of A073841.at n=22A140813
- Numbers n such that n, 2n, 3n are all highly composite numbers.at n=29A143770
- Highly composite numbers (A002182) whose following highly composite number is at least 3/2 times greater.at n=30A162936
- LCM of all differences of odd primes up to prime(n).at n=14A164313
- Denominators of the Inverse Akiyama-Tanigawa transform of the aerated even-indexed Bernoulli numbers 1, 0, 1/6, 0, -1/30, 0, 1/42, ...at n=26A177690
- Proper GA1 numbers: terms of A197638 with at least three prime divisors counted with multiplicity.at n=8A201557
- Denominator of the sum of the reciprocals of the first n nonprimes.at n=31A282512