A330348 - cp's OEIS frontend

A330348 a(n) is the number of divisors of n whose last digit equals the last digit of n.

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

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, 1, 1, 2, 2, 2, 1, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, 1, 2, 2, 1, 1, 1, 3, 2, 2, 1, 2, 3, 1, 1, 2, 1, 2, 2, 2, 1, 1, 2, 1, 1, 1, 1, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 2, 2, 3, 1, 1, 4, 1, 2, 1, 1, 4, 2, 2, 1, 3, 2, 1, 1, 2, 1]

cp's OEIS Frontend

A330348 a(n) is the number of divisors of n whose last digit equals the last digit of n.

Table of values

List of values

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

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

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