A169819 - cp's OEIS frontend

A169819 a(n) = total number of distinct divisors of n and all of its substrings.

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

[1, 2, 2, 3, 2, 4, 2, 4, 3, 5, 2, 6, 3, 5, 4, 7, 3, 8, 4, 7, 5, 4, 4, 8, 4, 6, 6, 7, 5, 9, 3, 7, 4, 6, 5, 9, 4, 7, 5, 9, 4, 9, 5, 6, 8, 7, 5, 10, 7, 7, 5, 7, 4, 10, 4, 11, 6, 7, 5, 13, 5, 6, 8, 9, 7, 8, 6, 9, 7, 9, 3, 13, 4, 6, 7, 9, 4, 11, 5, 11, 8, 6, 6, 13, 7, 8, 8, 8, 7, 13, 6, 8, 5, 7, 6, 13, 5, 10, 6]

cp's OEIS Frontend

A169819 a(n) = total number of distinct divisors of n and all of its substrings.

Table of values

List of values

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

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

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