A074847 - cp's OEIS frontend

A074847 Sum of 4-infinitary divisors of n: if n=Product p(i)^r(i) and d=Product p(i)^s(i), each s(i) has a digit a<=b in its 4-ary expansion everywhere that the corresponding r(i) has a digit b, then d is a 4-infinitary-divisor of n.

n	a(n)
1	1
2	3
3	4
4	7
5	6
6	12
7	8
8	15
9	13
10	18
11	12
12	28
13	14
14	24
15	24
16	17
17	18
18	39
19	20
20	42
21	32
22	36
23	24
24	60
25	31
26	42
27	40
28	56
29	30
30	72
31	32
32	51
33	48
34	54
35	48
36	91
37	38
38	60
39	56
40	90
41	42
42	96
43	44
44	84
45	78
46	72
47	48
48	68
49	57
50	93
51	72
52	98
53	54
54	120
55	72
56	120
57	80
58	90
59	60
60	168
61	62
62	96
63	104
64	119
65	84
66	144
67	68
68	126
69	96

[1, 3, 4, 7, 6, 12, 8, 15, 13, 18, 12, 28, 14, 24, 24, 17, 18, 39, 20, 42, 32, 36, 24, 60, 31, 42, 40, 56, 30, 72, 32, 51, 48, 54, 48, 91, 38, 60, 56, 90, 42, 96, 44, 84, 78, 72, 48, 68, 57, 93, 72, 98, 54, 120, 72, 120, 80, 90, 60, 168, 62, 96, 104, 119, 84, 144, 68, 126, 96]

cp's OEIS Frontend

A074847 Sum of 4-infinitary divisors of n: if n=Product p(i)^r(i) and d=Product p(i)^s(i), each s(i) has a digit a<=b in its 4-ary expansion everywhere that the corresponding r(i) has a digit b, then d is a 4-infinitary-divisor of n.

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	7
5	6
6	12
7	8
8	15
9	13
10	18
11	12
12	28
13	14
14	24
15	24
16	17
17	18
18	39
19	20
20	42
21	32
22	36
23	24
24	60
25	31
26	42
27	40
28	56
29	30
30	72
31	32
32	51
33	48
34	54
35	48
36	91
37	38
38	60
39	56
40	90
41	42
42	96
43	44
44	84
45	78
46	72
47	48
48	68
49	57
50	93
51	72
52	98
53	54
54	120
55	72
56	120
57	80
58	90
59	60
60	168
61	62
62	96
63	104
64	119
65	84
66	144
67	68
68	126
69	96

n	a(n)
1	1
2	3
3	4
4	7
5	6
6	12
7	8
8	15
9	13
10	18
11	12
12	28
13	14
14	24
15	24
16	17
17	18
18	39
19	20
20	42
21	32
22	36
23	24
24	60
25	31
26	42
27	40
28	56
29	30
30	72
31	32
32	51
33	48
34	54
35	48
36	91
37	38
38	60
39	56
40	90
41	42
42	96
43	44
44	84
45	78
46	72
47	48
48	68
49	57
50	93
51	72
52	98
53	54
54	120
55	72
56	120
57	80
58	90
59	60
60	168
61	62
62	96
63	104
64	119
65	84
66	144
67	68
68	126
69	96

n	a(n)
1	1
2	3
3	4
4	7
5	6
6	12
7	8
8	15
9	13
10	18
11	12
12	28
13	14
14	24
15	24
16	17
17	18
18	39
19	20
20	42
21	32
22	36
23	24
24	60
25	31
26	42
27	40
28	56
29	30
30	72
31	32
32	51
33	48
34	54
35	48
36	91
37	38
38	60
39	56
40	90
41	42
42	96
43	44
44	84
45	78
46	72
47	48
48	68
49	57
50	93
51	72
52	98
53	54
54	120
55	72
56	120
57	80
58	90
59	60
60	168
61	62
62	96
63	104
64	119
65	84
66	144
67	68
68	126
69	96