A139315 - cp's OEIS frontend

A139315 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.

n	a(n)
2	1
3	2
4	6
5	12
6	60
7	120
8	1260
9	840
10	0
11	2520
12	27720
13	55440
14	0
15	720720
16	1081080
17	2162160
18	61261200
19	36756720
20	1396755360
21	2327925600
22	0
23	698377680
24	16062686640
25	48188059920
26	0
27	749592043200
28	160626866400
29	240940299600
30	0
31	6987268688400

[1, 2, 6, 12, 60, 120, 1260, 840, 0, 2520, 27720, 55440, 0, 720720, 1081080, 2162160, 61261200, 36756720, 1396755360, 2327925600, 0, 698377680, 16062686640, 48188059920, 0, 749592043200, 160626866400, 240940299600, 0, 6987268688400]

cp's OEIS Frontend

A139315 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.

Table of values

List of values