A002201 - cp's OEIS frontend

A002201 Superior highly composite numbers: positive integers n for which there is an e > 0 such that d(n)/n^e >= d(k)/k^e for all k > 1, where the function d(n) counts the divisors of n (A000005).

n	a(n)
1	2
2	6
3	12
4	60
5	120
6	360
7	2520
8	5040
9	55440
10	720720
11	1441440
12	4324320
13	21621600
14	367567200
15	6983776800
16	13967553600
17	321253732800
18	2248776129600
19	65214507758400
20	195643523275200
21	6064949221531200
22	12129898443062400
23	448806242393308800
24	18401055938125660800
25	791245405339403414400

[2, 6, 12, 60, 120, 360, 2520, 5040, 55440, 720720, 1441440, 4324320, 21621600, 367567200, 6983776800, 13967553600, 321253732800, 2248776129600, 65214507758400, 195643523275200, 6064949221531200, 12129898443062400, 448806242393308800, 18401055938125660800, 791245405339403414400]

cp's OEIS Frontend

A002201 Superior highly composite numbers: positive integers n for which there is an e > 0 such that d(n)/n^e >= d(k)/k^e for all k > 1, where the function d(n) counts the divisors of n (A000005).

Table of values

List of values