A353806 - cp's OEIS frontend

A353806 a(n) = A353802(n) / gcd(A051027(n), A353802(n)), where A051027(n) = sigma(sigma(n)), and A353802(n) = Product_{p^e||n} sigma(sigma(p^e)).

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	16
11	1
12	1
13	1
14	1
15	7
16	1
17	1
18	1
19	1
20	1
21	5
22	16
23	1
24	1
25	1
26	1
27	1
28	1
29	1
30	112
31	1
32	1
33	49
34	13
35	45
36	1
37	1
38	1
39	7
40	16
41	1
42	5
43	1
44	1
45	1
46	16
47	1
48	1
49	1
50	1
51	7
52	64
53	1
54	1
55	112
56	1
57	49
58	16
59	1
60	7
61	1
62	1
63	1
64	1
65	9
66	784
67	1
68	1
69	5
70	720
71	1
72	1
73	1
74	1
75	1
76	1
77	5
78	7
79	1
80	1
81	1
82	16
83	1
84	5
85	117
86	1
87	7
88	16
89	1
90	16
91	45
92	1
93	147
94	16
95	7

[1, 1, 1, 1, 1, 1, 1, 1, 1, 16, 1, 1, 1, 1, 7, 1, 1, 1, 1, 1, 5, 16, 1, 1, 1, 1, 1, 1, 1, 112, 1, 1, 49, 13, 45, 1, 1, 1, 7, 16, 1, 5, 1, 1, 1, 16, 1, 1, 1, 1, 7, 64, 1, 1, 112, 1, 49, 16, 1, 7, 1, 1, 1, 1, 9, 784, 1, 1, 5, 720, 1, 1, 1, 1, 1, 1, 5, 7, 1, 1, 1, 16, 1, 5, 117, 1, 7, 16, 1, 16, 45, 1, 147, 16, 7]

cp's OEIS Frontend

A353806 a(n) = A353802(n) / gcd(A051027(n), A353802(n)), where A051027(n) = sigma(sigma(n)), and A353802(n) = Product_{p^e||n} sigma(sigma(p^e)).

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	16
11	1
12	1
13	1
14	1
15	7
16	1
17	1
18	1
19	1
20	1
21	5
22	16
23	1
24	1
25	1
26	1
27	1
28	1
29	1
30	112
31	1
32	1
33	49
34	13
35	45
36	1
37	1
38	1
39	7
40	16
41	1
42	5
43	1
44	1
45	1
46	16
47	1
48	1
49	1
50	1
51	7
52	64
53	1
54	1
55	112
56	1
57	49
58	16
59	1
60	7
61	1
62	1
63	1
64	1
65	9
66	784
67	1
68	1
69	5
70	720
71	1
72	1
73	1
74	1
75	1
76	1
77	5
78	7
79	1
80	1
81	1
82	16
83	1
84	5
85	117
86	1
87	7
88	16
89	1
90	16
91	45
92	1
93	147
94	16
95	7

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	16
11	1
12	1
13	1
14	1
15	7
16	1
17	1
18	1
19	1
20	1
21	5
22	16
23	1
24	1
25	1
26	1
27	1
28	1
29	1
30	112
31	1
32	1
33	49
34	13
35	45
36	1
37	1
38	1
39	7
40	16
41	1
42	5
43	1
44	1
45	1
46	16
47	1
48	1
49	1
50	1
51	7
52	64
53	1
54	1
55	112
56	1
57	49
58	16
59	1
60	7
61	1
62	1
63	1
64	1
65	9
66	784
67	1
68	1
69	5
70	720
71	1
72	1
73	1
74	1
75	1
76	1
77	5
78	7
79	1
80	1
81	1
82	16
83	1
84	5
85	117
86	1
87	7
88	16
89	1
90	16
91	45
92	1
93	147
94	16
95	7

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	16
11	1
12	1
13	1
14	1
15	7
16	1
17	1
18	1
19	1
20	1
21	5
22	16
23	1
24	1
25	1
26	1
27	1
28	1
29	1
30	112
31	1
32	1
33	49
34	13
35	45
36	1
37	1
38	1
39	7
40	16
41	1
42	5
43	1
44	1
45	1
46	16
47	1
48	1
49	1
50	1
51	7
52	64
53	1
54	1
55	112
56	1
57	49
58	16
59	1
60	7
61	1
62	1
63	1
64	1
65	9
66	784
67	1
68	1
69	5
70	720
71	1
72	1
73	1
74	1
75	1
76	1
77	5
78	7
79	1
80	1
81	1
82	16
83	1
84	5
85	117
86	1
87	7
88	16
89	1
90	16
91	45
92	1
93	147
94	16
95	7