A353805 - cp's OEIS frontend

A353805 a(n) = A051027(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	13
11	1
12	1
13	1
14	1
15	5
16	1
17	1
18	1
19	1
20	1
21	3
22	13
23	1
24	1
25	1
26	1
27	1
28	1
29	1
30	65
31	1
32	1
33	31
34	10
35	31
36	1
37	1
38	1
39	5
40	13
41	1
42	3
43	1
44	1
45	1
46	13
47	1
48	1
49	1
50	1
51	5
52	57
53	1
54	1
55	65
56	1
57	31
58	13
59	1
60	5
61	1
62	1
63	1
64	1
65	7
66	403
67	1
68	1
69	3
70	403
71	1
72	1
73	1
74	1
75	1
76	1
77	3
78	5
79	1
80	1
81	1
82	13
83	1
84	3
85	70
86	1
87	5
88	13
89	1
90	13
91	31
92	1
93	85
94	13
95	5
96	1
97	1
98	13

[1, 1, 1, 1, 1, 1, 1, 1, 1, 13, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 3, 13, 1, 1, 1, 1, 1, 1, 1, 65, 1, 1, 31, 10, 31, 1, 1, 1, 5, 13, 1, 3, 1, 1, 1, 13, 1, 1, 1, 1, 5, 57, 1, 1, 65, 1, 31, 13, 1, 5, 1, 1, 1, 1, 7, 403, 1, 1, 3, 403, 1, 1, 1, 1, 1, 1, 3, 5, 1, 1, 1, 13, 1, 3, 70, 1, 5, 13, 1, 13, 31, 1, 85, 13, 5, 1, 1, 13]

cp's OEIS Frontend

A353805 a(n) = A051027(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	13
11	1
12	1
13	1
14	1
15	5
16	1
17	1
18	1
19	1
20	1
21	3
22	13
23	1
24	1
25	1
26	1
27	1
28	1
29	1
30	65
31	1
32	1
33	31
34	10
35	31
36	1
37	1
38	1
39	5
40	13
41	1
42	3
43	1
44	1
45	1
46	13
47	1
48	1
49	1
50	1
51	5
52	57
53	1
54	1
55	65
56	1
57	31
58	13
59	1
60	5
61	1
62	1
63	1
64	1
65	7
66	403
67	1
68	1
69	3
70	403
71	1
72	1
73	1
74	1
75	1
76	1
77	3
78	5
79	1
80	1
81	1
82	13
83	1
84	3
85	70
86	1
87	5
88	13
89	1
90	13
91	31
92	1
93	85
94	13
95	5
96	1
97	1
98	13

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	13
11	1
12	1
13	1
14	1
15	5
16	1
17	1
18	1
19	1
20	1
21	3
22	13
23	1
24	1
25	1
26	1
27	1
28	1
29	1
30	65
31	1
32	1
33	31
34	10
35	31
36	1
37	1
38	1
39	5
40	13
41	1
42	3
43	1
44	1
45	1
46	13
47	1
48	1
49	1
50	1
51	5
52	57
53	1
54	1
55	65
56	1
57	31
58	13
59	1
60	5
61	1
62	1
63	1
64	1
65	7
66	403
67	1
68	1
69	3
70	403
71	1
72	1
73	1
74	1
75	1
76	1
77	3
78	5
79	1
80	1
81	1
82	13
83	1
84	3
85	70
86	1
87	5
88	13
89	1
90	13
91	31
92	1
93	85
94	13
95	5
96	1
97	1
98	13

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	13
11	1
12	1
13	1
14	1
15	5
16	1
17	1
18	1
19	1
20	1
21	3
22	13
23	1
24	1
25	1
26	1
27	1
28	1
29	1
30	65
31	1
32	1
33	31
34	10
35	31
36	1
37	1
38	1
39	5
40	13
41	1
42	3
43	1
44	1
45	1
46	13
47	1
48	1
49	1
50	1
51	5
52	57
53	1
54	1
55	65
56	1
57	31
58	13
59	1
60	5
61	1
62	1
63	1
64	1
65	7
66	403
67	1
68	1
69	3
70	403
71	1
72	1
73	1
74	1
75	1
76	1
77	3
78	5
79	1
80	1
81	1
82	13
83	1
84	3
85	70
86	1
87	5
88	13
89	1
90	13
91	31
92	1
93	85
94	13
95	5
96	1
97	1
98	13