A336745 - cp's OEIS frontend

A336745 Numbers m that divide the product phi(m) * sigma(m) * tau(m), where phi is the Euler totient function (A000010), sigma is the sum of divisors function (A000203) and tau is the number of divisors function (A000005).

n	a(n)
1	1
2	2
3	6
4	8
5	9
6	12
7	18
8	24
9	28
10	32
11	36
12	40
13	54
14	72
15	80
16	84
17	96
18	108
19	117
20	120
21	128
22	135
23	144
24	162
25	196
26	200
27	216
28	224
29	234
30	240
31	243
32	252
33	270
34	288
35	324
36	360
37	384
38	400
39	405
40	448
41	468
42	486
43	496
44	512
45	540
46	576
47	588
48	600
49	625
50	640
51	648
52	672
53	675
54	720
55	756
56	768
57	775
58	810
59	819

[1, 2, 6, 8, 9, 12, 18, 24, 28, 32, 36, 40, 54, 72, 80, 84, 96, 108, 117, 120, 128, 135, 144, 162, 196, 200, 216, 224, 234, 240, 243, 252, 270, 288, 324, 360, 384, 400, 405, 448, 468, 486, 496, 512, 540, 576, 588, 600, 625, 640, 648, 672, 675, 720, 756, 768, 775, 810, 819]

cp's OEIS Frontend

A336745 Numbers m that divide the product phi(m) * sigma(m) * tau(m), where phi is the Euler totient function (A000010), sigma is the sum of divisors function (A000203) and tau is the number of divisors function (A000005).

Table of values

List of values

n	a(n)
1	1
2	2
3	6
4	8
5	9
6	12
7	18
8	24
9	28
10	32
11	36
12	40
13	54
14	72
15	80
16	84
17	96
18	108
19	117
20	120
21	128
22	135
23	144
24	162
25	196
26	200
27	216
28	224
29	234
30	240
31	243
32	252
33	270
34	288
35	324
36	360
37	384
38	400
39	405
40	448
41	468
42	486
43	496
44	512
45	540
46	576
47	588
48	600
49	625
50	640
51	648
52	672
53	675
54	720
55	756
56	768
57	775
58	810
59	819

n	a(n)
1	1
2	2
3	6
4	8
5	9
6	12
7	18
8	24
9	28
10	32
11	36
12	40
13	54
14	72
15	80
16	84
17	96
18	108
19	117
20	120
21	128
22	135
23	144
24	162
25	196
26	200
27	216
28	224
29	234
30	240
31	243
32	252
33	270
34	288
35	324
36	360
37	384
38	400
39	405
40	448
41	468
42	486
43	496
44	512
45	540
46	576
47	588
48	600
49	625
50	640
51	648
52	672
53	675
54	720
55	756
56	768
57	775
58	810
59	819

n	a(n)
1	1
2	2
3	6
4	8
5	9
6	12
7	18
8	24
9	28
10	32
11	36
12	40
13	54
14	72
15	80
16	84
17	96
18	108
19	117
20	120
21	128
22	135
23	144
24	162
25	196
26	200
27	216
28	224
29	234
30	240
31	243
32	252
33	270
34	288
35	324
36	360
37	384
38	400
39	405
40	448
41	468
42	486
43	496
44	512
45	540
46	576
47	588
48	600
49	625
50	640
51	648
52	672
53	675
54	720
55	756
56	768
57	775
58	810
59	819