A131904 - cp's OEIS frontend

A131904 Smallest positive integer k with the same number of divisors as the n-th integer for which such a k exists.

n	a(n)
1	2
2	2
3	2
4	6
5	4
6	6
7	2
8	2
9	6
10	6
11	2
12	12
13	2
14	12
15	6
16	6
17	2
18	4
19	6
20	6
21	12
22	2
23	24
24	2
25	12
26	6
27	6
28	6
29	2
30	6
31	6
32	24
33	2
34	24
35	2
36	12
37	12
38	6
39	2
40	4
41	12
42	6
43	12
44	2
45	24
46	6
47	24
48	6
49	6
50	2
51	2
52	6
53	12
54	6
55	24
56	2
57	12
58	6
59	24
60	2
61	60
62	2
63	6
64	12
65	12
66	6
67	24
68	2
69	48
70	16
71	6
72	2
73	60
74	6
75	6
76	6
77	24
78	2

[2, 2, 2, 6, 4, 6, 2, 2, 6, 6, 2, 12, 2, 12, 6, 6, 2, 4, 6, 6, 12, 2, 24, 2, 12, 6, 6, 6, 2, 6, 6, 24, 2, 24, 2, 12, 12, 6, 2, 4, 12, 6, 12, 2, 24, 6, 24, 6, 6, 2, 2, 6, 12, 6, 24, 2, 12, 6, 24, 2, 60, 2, 6, 12, 12, 6, 24, 2, 48, 16, 6, 2, 60, 6, 6, 6, 24, 2]

cp's OEIS Frontend

A131904 Smallest positive integer k with the same number of divisors as the n-th integer for which such a k exists.

Table of values

List of values

n	a(n)
1	2
2	2
3	2
4	6
5	4
6	6
7	2
8	2
9	6
10	6
11	2
12	12
13	2
14	12
15	6
16	6
17	2
18	4
19	6
20	6
21	12
22	2
23	24
24	2
25	12
26	6
27	6
28	6
29	2
30	6
31	6
32	24
33	2
34	24
35	2
36	12
37	12
38	6
39	2
40	4
41	12
42	6
43	12
44	2
45	24
46	6
47	24
48	6
49	6
50	2
51	2
52	6
53	12
54	6
55	24
56	2
57	12
58	6
59	24
60	2
61	60
62	2
63	6
64	12
65	12
66	6
67	24
68	2
69	48
70	16
71	6
72	2
73	60
74	6
75	6
76	6
77	24
78	2

n	a(n)
1	2
2	2
3	2
4	6
5	4
6	6
7	2
8	2
9	6
10	6
11	2
12	12
13	2
14	12
15	6
16	6
17	2
18	4
19	6
20	6
21	12
22	2
23	24
24	2
25	12
26	6
27	6
28	6
29	2
30	6
31	6
32	24
33	2
34	24
35	2
36	12
37	12
38	6
39	2
40	4
41	12
42	6
43	12
44	2
45	24
46	6
47	24
48	6
49	6
50	2
51	2
52	6
53	12
54	6
55	24
56	2
57	12
58	6
59	24
60	2
61	60
62	2
63	6
64	12
65	12
66	6
67	24
68	2
69	48
70	16
71	6
72	2
73	60
74	6
75	6
76	6
77	24
78	2

n	a(n)
1	2
2	2
3	2
4	6
5	4
6	6
7	2
8	2
9	6
10	6
11	2
12	12
13	2
14	12
15	6
16	6
17	2
18	4
19	6
20	6
21	12
22	2
23	24
24	2
25	12
26	6
27	6
28	6
29	2
30	6
31	6
32	24
33	2
34	24
35	2
36	12
37	12
38	6
39	2
40	4
41	12
42	6
43	12
44	2
45	24
46	6
47	24
48	6
49	6
50	2
51	2
52	6
53	12
54	6
55	24
56	2
57	12
58	6
59	24
60	2
61	60
62	2
63	6
64	12
65	12
66	6
67	24
68	2
69	48
70	16
71	6
72	2
73	60
74	6
75	6
76	6
77	24
78	2