A080398 - cp's OEIS frontend

A080398 Largest squarefree number dividing sum of divisors of n.

n	a(n)
1	1
2	3
3	2
4	7
5	6
6	6
7	2
8	15
9	13
10	6
11	6
12	14
13	14
14	6
15	6
16	31
17	6
18	39
19	10
20	42
21	2
22	6
23	6
24	30
25	31
26	42
27	10
28	14
29	30
30	6
31	2
32	21
33	6
34	6
35	6
36	91
37	38
38	30
39	14
40	30
41	42
42	6
43	22
44	42
45	78
46	6
47	6
48	62
49	57
50	93
51	6
52	14
53	6
54	30
55	6
56	30
57	10
58	30
59	30
60	42
61	62
62	6
63	26
64	127
65	42
66	6
67	34
68	42
69	6
70	6
71	6
72	195
73	74
74	114
75	62
76	70
77	6
78	42
79	10

[1, 3, 2, 7, 6, 6, 2, 15, 13, 6, 6, 14, 14, 6, 6, 31, 6, 39, 10, 42, 2, 6, 6, 30, 31, 42, 10, 14, 30, 6, 2, 21, 6, 6, 6, 91, 38, 30, 14, 30, 42, 6, 22, 42, 78, 6, 6, 62, 57, 93, 6, 14, 6, 30, 6, 30, 10, 30, 30, 42, 62, 6, 26, 127, 42, 6, 34, 42, 6, 6, 6, 195, 74, 114, 62, 70, 6, 42, 10]

cp's OEIS Frontend

A080398 Largest squarefree number dividing sum of divisors of n.

Table of values

List of values

n	a(n)
1	1
2	3
3	2
4	7
5	6
6	6
7	2
8	15
9	13
10	6
11	6
12	14
13	14
14	6
15	6
16	31
17	6
18	39
19	10
20	42
21	2
22	6
23	6
24	30
25	31
26	42
27	10
28	14
29	30
30	6
31	2
32	21
33	6
34	6
35	6
36	91
37	38
38	30
39	14
40	30
41	42
42	6
43	22
44	42
45	78
46	6
47	6
48	62
49	57
50	93
51	6
52	14
53	6
54	30
55	6
56	30
57	10
58	30
59	30
60	42
61	62
62	6
63	26
64	127
65	42
66	6
67	34
68	42
69	6
70	6
71	6
72	195
73	74
74	114
75	62
76	70
77	6
78	42
79	10

n	a(n)
1	1
2	3
3	2
4	7
5	6
6	6
7	2
8	15
9	13
10	6
11	6
12	14
13	14
14	6
15	6
16	31
17	6
18	39
19	10
20	42
21	2
22	6
23	6
24	30
25	31
26	42
27	10
28	14
29	30
30	6
31	2
32	21
33	6
34	6
35	6
36	91
37	38
38	30
39	14
40	30
41	42
42	6
43	22
44	42
45	78
46	6
47	6
48	62
49	57
50	93
51	6
52	14
53	6
54	30
55	6
56	30
57	10
58	30
59	30
60	42
61	62
62	6
63	26
64	127
65	42
66	6
67	34
68	42
69	6
70	6
71	6
72	195
73	74
74	114
75	62
76	70
77	6
78	42
79	10

n	a(n)
1	1
2	3
3	2
4	7
5	6
6	6
7	2
8	15
9	13
10	6
11	6
12	14
13	14
14	6
15	6
16	31
17	6
18	39
19	10
20	42
21	2
22	6
23	6
24	30
25	31
26	42
27	10
28	14
29	30
30	6
31	2
32	21
33	6
34	6
35	6
36	91
37	38
38	30
39	14
40	30
41	42
42	6
43	22
44	42
45	78
46	6
47	6
48	62
49	57
50	93
51	6
52	14
53	6
54	30
55	6
56	30
57	10
58	30
59	30
60	42
61	62
62	6
63	26
64	127
65	42
66	6
67	34
68	42
69	6
70	6
71	6
72	195
73	74
74	114
75	62
76	70
77	6
78	42
79	10