A343879 - cp's OEIS frontend

A343879 Number of pairs (d1, d2) of divisors of n such that d1 and d1 + d2 <= n.

n	a(n)
1	0
2	0
3	0
4	1
5	0
6	2
7	0
8	3
9	1
10	2
11	0
12	7
13	0
14	2
15	2
16	6
17	0
18	7
19	0
20	7
21	2
22	2
23	0
24	15
25	1
26	2
27	3
28	7
29	0
30	12
31	0
32	10
33	2
34	2
35	2
36	19
37	0
38	2
39	2
40	15
41	0
42	12
43	0
44	7
45	7
46	2
47	0
48	26
49	1
50	7
51	2
52	7
53	0
54	15
55	2
56	15
57	2
58	2
59	0
60	31
61	0
62	2
63	7
64	15
65	2
66	12
67	0
68	7
69	2
70	12
71	0
72	37
73	0
74	2
75	7
76	7
77	2
78	12
79	0
80	26
81	6
82	2
83	0
84	31
85	2
86	2
87	2
88	15

[0, 0, 0, 1, 0, 2, 0, 3, 1, 2, 0, 7, 0, 2, 2, 6, 0, 7, 0, 7, 2, 2, 0, 15, 1, 2, 3, 7, 0, 12, 0, 10, 2, 2, 2, 19, 0, 2, 2, 15, 0, 12, 0, 7, 7, 2, 0, 26, 1, 7, 2, 7, 0, 15, 2, 15, 2, 2, 0, 31, 0, 2, 7, 15, 2, 12, 0, 7, 2, 12, 0, 37, 0, 2, 7, 7, 2, 12, 0, 26, 6, 2, 0, 31, 2, 2, 2, 15]

cp's OEIS Frontend

A343879 Number of pairs (d1, d2) of divisors of n such that d1 and d1 + d2 <= n.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	1
5	0
6	2
7	0
8	3
9	1
10	2
11	0
12	7
13	0
14	2
15	2
16	6
17	0
18	7
19	0
20	7
21	2
22	2
23	0
24	15
25	1
26	2
27	3
28	7
29	0
30	12
31	0
32	10
33	2
34	2
35	2
36	19
37	0
38	2
39	2
40	15
41	0
42	12
43	0
44	7
45	7
46	2
47	0
48	26
49	1
50	7
51	2
52	7
53	0
54	15
55	2
56	15
57	2
58	2
59	0
60	31
61	0
62	2
63	7
64	15
65	2
66	12
67	0
68	7
69	2
70	12
71	0
72	37
73	0
74	2
75	7
76	7
77	2
78	12
79	0
80	26
81	6
82	2
83	0
84	31
85	2
86	2
87	2
88	15

n	a(n)
1	0
2	0
3	0
4	1
5	0
6	2
7	0
8	3
9	1
10	2
11	0
12	7
13	0
14	2
15	2
16	6
17	0
18	7
19	0
20	7
21	2
22	2
23	0
24	15
25	1
26	2
27	3
28	7
29	0
30	12
31	0
32	10
33	2
34	2
35	2
36	19
37	0
38	2
39	2
40	15
41	0
42	12
43	0
44	7
45	7
46	2
47	0
48	26
49	1
50	7
51	2
52	7
53	0
54	15
55	2
56	15
57	2
58	2
59	0
60	31
61	0
62	2
63	7
64	15
65	2
66	12
67	0
68	7
69	2
70	12
71	0
72	37
73	0
74	2
75	7
76	7
77	2
78	12
79	0
80	26
81	6
82	2
83	0
84	31
85	2
86	2
87	2
88	15

n	a(n)
1	0
2	0
3	0
4	1
5	0
6	2
7	0
8	3
9	1
10	2
11	0
12	7
13	0
14	2
15	2
16	6
17	0
18	7
19	0
20	7
21	2
22	2
23	0
24	15
25	1
26	2
27	3
28	7
29	0
30	12
31	0
32	10
33	2
34	2
35	2
36	19
37	0
38	2
39	2
40	15
41	0
42	12
43	0
44	7
45	7
46	2
47	0
48	26
49	1
50	7
51	2
52	7
53	0
54	15
55	2
56	15
57	2
58	2
59	0
60	31
61	0
62	2
63	7
64	15
65	2
66	12
67	0
68	7
69	2
70	12
71	0
72	37
73	0
74	2
75	7
76	7
77	2
78	12
79	0
80	26
81	6
82	2
83	0
84	31
85	2
86	2
87	2
88	15