A162348 - cp's OEIS frontend

A162348 List of pairs (i,j) of central factors of n, such that i*j = n, where i is the largest divisor of n <= sqrt(n) and j is the smallest divisor of n >= sqrt(n).

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

[1, 1, 1, 2, 1, 3, 2, 2, 1, 5, 2, 3, 1, 7, 2, 4, 3, 3, 2, 5, 1, 11, 3, 4, 1, 13, 2, 7, 3, 5, 4, 4, 1, 17, 3, 6, 1, 19, 4, 5, 3, 7, 2, 11, 1, 23, 4, 6, 5, 5, 2, 13, 3, 9, 4, 7, 1, 29, 5, 6, 1, 31, 4, 8, 3, 11, 2, 17, 5, 7, 6, 6, 1, 37, 2, 19, 3, 13, 5, 8, 1, 41, 6, 7, 1, 43, 4, 11, 5, 9, 2, 23, 1, 47, 6, 8, 7]

cp's OEIS Frontend

A162348 List of pairs (i,j) of central factors of n, such that i*j = n, where i is the largest divisor of n <= sqrt(n) and j is the smallest divisor of n >= sqrt(n).

Table of values

List of values

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

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

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