A360461 - cp's OEIS frontend

A360461 T(n,k) is the sum of all the k-th smallest divisors of all positive integers <= n. Irregular triangle read by rows (n>=1, k>=1).

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

[1, 2, 2, 3, 5, 4, 7, 4, 5, 12, 4, 6, 14, 7, 6, 7, 21, 7, 6, 8, 23, 11, 14, 9, 26, 20, 14, 10, 28, 25, 24, 11, 39, 25, 24, 12, 41, 28, 28, 6, 12, 13, 54, 28, 28, 6, 12, 14, 56, 35, 42, 6, 12, 15, 59, 40, 57, 6, 12, 16, 61, 44, 65, 22, 12, 17, 78, 44, 65, 22, 12, 18, 80, 47, 71, 31, 30, 19, 99, 47, 71, 31, 30]

cp's OEIS Frontend

A360461 T(n,k) is the sum of all the k-th smallest divisors of all positive integers <= n. Irregular triangle read by rows (n>=1, k>=1).

Table of values

List of values

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

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

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