A326038 - cp's OEIS frontend

A326038 Square root of the largest square dividing the sum of divisors of n: a(n) = A000188(sigma(n)).

n	a(n)
1	1
2	1
3	2
4	1
5	1
6	2
7	2
8	1
9	1
10	3
11	2
12	2
13	1
14	2
15	2
16	1
17	3
18	1
19	2
20	1
21	4
22	6
23	2
24	2
25	1
26	1
27	2
28	2
29	1
30	6
31	4
32	3
33	4
34	3
35	4
36	1
37	1
38	2
39	2
40	3
41	1
42	4
43	2
44	2
45	1
46	6
47	4
48	2
49	1
50	1
51	6
52	7
53	3
54	2
55	6
56	2
57	4
58	3
59	2
60	2
61	1
62	4
63	2
64	1
65	2
66	12
67	2
68	3
69	4
70	12
71	6
72	1
73	1
74	1
75	2
76	2
77	4
78	2
79	4
80	1
81	11
82	3
83	2
84	4
85	6
86	2
87	2
88	6
89	3
90	3
91	4
92	2
93	8
94	12
95	2
96	6
97	7
98	3
99	2
100	1
101	1
102	6
103	2
104	1
105	8

[1, 1, 2, 1, 1, 2, 2, 1, 1, 3, 2, 2, 1, 2, 2, 1, 3, 1, 2, 1, 4, 6, 2, 2, 1, 1, 2, 2, 1, 6, 4, 3, 4, 3, 4, 1, 1, 2, 2, 3, 1, 4, 2, 2, 1, 6, 4, 2, 1, 1, 6, 7, 3, 2, 6, 2, 4, 3, 2, 2, 1, 4, 2, 1, 2, 12, 2, 3, 4, 12, 6, 1, 1, 1, 2, 2, 4, 2, 4, 1, 11, 3, 2, 4, 6, 2, 2, 6, 3, 3, 4, 2, 8, 12, 2, 6, 7, 3, 2, 1, 1, 6, 2, 1, 8]

cp's OEIS Frontend

A326038 Square root of the largest square dividing the sum of divisors of n: a(n) = A000188(sigma(n)).

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	1
5	1
6	2
7	2
8	1
9	1
10	3
11	2
12	2
13	1
14	2
15	2
16	1
17	3
18	1
19	2
20	1
21	4
22	6
23	2
24	2
25	1
26	1
27	2
28	2
29	1
30	6
31	4
32	3
33	4
34	3
35	4
36	1
37	1
38	2
39	2
40	3
41	1
42	4
43	2
44	2
45	1
46	6
47	4
48	2
49	1
50	1
51	6
52	7
53	3
54	2
55	6
56	2
57	4
58	3
59	2
60	2
61	1
62	4
63	2
64	1
65	2
66	12
67	2
68	3
69	4
70	12
71	6
72	1
73	1
74	1
75	2
76	2
77	4
78	2
79	4
80	1
81	11
82	3
83	2
84	4
85	6
86	2
87	2
88	6
89	3
90	3
91	4
92	2
93	8
94	12
95	2
96	6
97	7
98	3
99	2
100	1
101	1
102	6
103	2
104	1
105	8

n	a(n)
1	1
2	1
3	2
4	1
5	1
6	2
7	2
8	1
9	1
10	3
11	2
12	2
13	1
14	2
15	2
16	1
17	3
18	1
19	2
20	1
21	4
22	6
23	2
24	2
25	1
26	1
27	2
28	2
29	1
30	6
31	4
32	3
33	4
34	3
35	4
36	1
37	1
38	2
39	2
40	3
41	1
42	4
43	2
44	2
45	1
46	6
47	4
48	2
49	1
50	1
51	6
52	7
53	3
54	2
55	6
56	2
57	4
58	3
59	2
60	2
61	1
62	4
63	2
64	1
65	2
66	12
67	2
68	3
69	4
70	12
71	6
72	1
73	1
74	1
75	2
76	2
77	4
78	2
79	4
80	1
81	11
82	3
83	2
84	4
85	6
86	2
87	2
88	6
89	3
90	3
91	4
92	2
93	8
94	12
95	2
96	6
97	7
98	3
99	2
100	1
101	1
102	6
103	2
104	1
105	8

n	a(n)
1	1
2	1
3	2
4	1
5	1
6	2
7	2
8	1
9	1
10	3
11	2
12	2
13	1
14	2
15	2
16	1
17	3
18	1
19	2
20	1
21	4
22	6
23	2
24	2
25	1
26	1
27	2
28	2
29	1
30	6
31	4
32	3
33	4
34	3
35	4
36	1
37	1
38	2
39	2
40	3
41	1
42	4
43	2
44	2
45	1
46	6
47	4
48	2
49	1
50	1
51	6
52	7
53	3
54	2
55	6
56	2
57	4
58	3
59	2
60	2
61	1
62	4
63	2
64	1
65	2
66	12
67	2
68	3
69	4
70	12
71	6
72	1
73	1
74	1
75	2
76	2
77	4
78	2
79	4
80	1
81	11
82	3
83	2
84	4
85	6
86	2
87	2
88	6
89	3
90	3
91	4
92	2
93	8
94	12
95	2
96	6
97	7
98	3
99	2
100	1
101	1
102	6
103	2
104	1
105	8