A306010 - cp's OEIS frontend

A306010 Let S(m) = d(k)/d(1) + ... + d(1)/d(k), where d(1)..d(k) are the unitary divisors of m; then a(n) is the number m when the sums S(m) are arranged in increasing order.

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

[1, 2, 3, 4, 5, 7, 8, 6, 9, 11, 10, 13, 12, 16, 17, 15, 14, 19, 20, 18, 23, 21, 25, 27, 24, 22, 29, 28, 31, 32, 26, 33, 37, 35, 36, 41, 40, 34, 43, 30, 39, 47, 44, 45, 38, 49, 53, 48, 52, 51, 46, 55, 56, 59, 42, 61, 50, 57, 64, 63, 67, 54, 65, 71, 68, 58, 73]

cp's OEIS Frontend

A306010 Let S(m) = d(k)/d(1) + ... + d(1)/d(k), where d(1)..d(k) are the unitary divisors of m; then a(n) is the number m when the sums S(m) are arranged in increasing order.

Table of values

List of values

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

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

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