A138012 - cp's OEIS frontend

A138012 a(n) = number of positive divisors, k, of n where d(k) divides n (where d(k) = number of positive divisors of k, A000005).

n	a(n)
1	1
2	2
3	1
4	2
5	1
6	3
7	1
8	3
9	2
10	3
11	1
12	6
13	1
14	3
15	1
16	3
17	1
18	5
19	1
20	4
21	1
22	3
23	1
24	8
25	1
26	3
27	2
28	4
29	1
30	4
31	1
32	3
33	1
34	3
35	1
36	9
37	1
38	3
39	1
40	6
41	1
42	4
43	1
44	4
45	2
46	3
47	1
48	8
49	1
50	3
51	1
52	4
53	1
54	5
55	1
56	6
57	1
58	3
59	1
60	11
61	1
62	3
63	2
64	3
65	1
66	4
67	1
68	4
69	1
70	4
71	1
72	12
73	1
74	3
75	2
76	4
77	1
78	4
79	1
80	8
81	2
82	3
83	1
84	11
85	1
86	3
87	1
88	6
89	1
90	7
91	1
92	4
93	1
94	3
95	1
96	10
97	1
98	3
99	2
100	4
101	1
102	4
103	1
104	6

[1, 2, 1, 2, 1, 3, 1, 3, 2, 3, 1, 6, 1, 3, 1, 3, 1, 5, 1, 4, 1, 3, 1, 8, 1, 3, 2, 4, 1, 4, 1, 3, 1, 3, 1, 9, 1, 3, 1, 6, 1, 4, 1, 4, 2, 3, 1, 8, 1, 3, 1, 4, 1, 5, 1, 6, 1, 3, 1, 11, 1, 3, 2, 3, 1, 4, 1, 4, 1, 4, 1, 12, 1, 3, 2, 4, 1, 4, 1, 8, 2, 3, 1, 11, 1, 3, 1, 6, 1, 7, 1, 4, 1, 3, 1, 10, 1, 3, 2, 4, 1, 4, 1, 6]

cp's OEIS Frontend

A138012 a(n) = number of positive divisors, k, of n where d(k) divides n (where d(k) = number of positive divisors of k, A000005).

Table of values

List of values

n	a(n)
1	1
2	2
3	1
4	2
5	1
6	3
7	1
8	3
9	2
10	3
11	1
12	6
13	1
14	3
15	1
16	3
17	1
18	5
19	1
20	4
21	1
22	3
23	1
24	8
25	1
26	3
27	2
28	4
29	1
30	4
31	1
32	3
33	1
34	3
35	1
36	9
37	1
38	3
39	1
40	6
41	1
42	4
43	1
44	4
45	2
46	3
47	1
48	8
49	1
50	3
51	1
52	4
53	1
54	5
55	1
56	6
57	1
58	3
59	1
60	11
61	1
62	3
63	2
64	3
65	1
66	4
67	1
68	4
69	1
70	4
71	1
72	12
73	1
74	3
75	2
76	4
77	1
78	4
79	1
80	8
81	2
82	3
83	1
84	11
85	1
86	3
87	1
88	6
89	1
90	7
91	1
92	4
93	1
94	3
95	1
96	10
97	1
98	3
99	2
100	4
101	1
102	4
103	1
104	6

n	a(n)
1	1
2	2
3	1
4	2
5	1
6	3
7	1
8	3
9	2
10	3
11	1
12	6
13	1
14	3
15	1
16	3
17	1
18	5
19	1
20	4
21	1
22	3
23	1
24	8
25	1
26	3
27	2
28	4
29	1
30	4
31	1
32	3
33	1
34	3
35	1
36	9
37	1
38	3
39	1
40	6
41	1
42	4
43	1
44	4
45	2
46	3
47	1
48	8
49	1
50	3
51	1
52	4
53	1
54	5
55	1
56	6
57	1
58	3
59	1
60	11
61	1
62	3
63	2
64	3
65	1
66	4
67	1
68	4
69	1
70	4
71	1
72	12
73	1
74	3
75	2
76	4
77	1
78	4
79	1
80	8
81	2
82	3
83	1
84	11
85	1
86	3
87	1
88	6
89	1
90	7
91	1
92	4
93	1
94	3
95	1
96	10
97	1
98	3
99	2
100	4
101	1
102	4
103	1
104	6

n	a(n)
1	1
2	2
3	1
4	2
5	1
6	3
7	1
8	3
9	2
10	3
11	1
12	6
13	1
14	3
15	1
16	3
17	1
18	5
19	1
20	4
21	1
22	3
23	1
24	8
25	1
26	3
27	2
28	4
29	1
30	4
31	1
32	3
33	1
34	3
35	1
36	9
37	1
38	3
39	1
40	6
41	1
42	4
43	1
44	4
45	2
46	3
47	1
48	8
49	1
50	3
51	1
52	4
53	1
54	5
55	1
56	6
57	1
58	3
59	1
60	11
61	1
62	3
63	2
64	3
65	1
66	4
67	1
68	4
69	1
70	4
71	1
72	12
73	1
74	3
75	2
76	4
77	1
78	4
79	1
80	8
81	2
82	3
83	1
84	11
85	1
86	3
87	1
88	6
89	1
90	7
91	1
92	4
93	1
94	3
95	1
96	10
97	1
98	3
99	2
100	4
101	1
102	4
103	1
104	6