A058063 - cp's OEIS frontend

A058063 Number of prime factors (when counted with multiplicity) of sigma(n), the sum of divisors of n.

n	a(n)
1	0
2	1
3	2
4	1
5	2
6	3
7	3
8	2
9	1
10	3
11	3
12	3
13	2
14	4
15	4
16	1
17	3
18	2
19	3
20	3
21	5
22	4
23	4
24	4
25	1
26	3
27	4
28	4
29	3
30	5
31	5
32	3
33	5
34	4
35	5
36	2
37	2
38	4
39	4
40	4
41	3
42	6
43	3
44	4
45	3
46	5
47	5
48	3
49	2
50	2
51	5
52	3
53	4
54	5
55	5
56	5
57	5
58	4
59	4
60	5
61	2
62	6
63	4
64	1
65	4
66	6
67	3
68	4
69	6
70	6
71	5
72	3
73	2
74	3
75	3
76	4
77	6
78	5
79	5
80	3
81	2
82	4
83	4
84	6
85	5
86	4
87	5
88	5
89	4
90	4
91	5
92	5
93	7
94	6
95	5
96	5
97	3
98	3
99	4
100	2
101	3
102	6
103	4
104	4
105	7

[0, 1, 2, 1, 2, 3, 3, 2, 1, 3, 3, 3, 2, 4, 4, 1, 3, 2, 3, 3, 5, 4, 4, 4, 1, 3, 4, 4, 3, 5, 5, 3, 5, 4, 5, 2, 2, 4, 4, 4, 3, 6, 3, 4, 3, 5, 5, 3, 2, 2, 5, 3, 4, 5, 5, 5, 5, 4, 4, 5, 2, 6, 4, 1, 4, 6, 3, 4, 6, 6, 5, 3, 2, 3, 3, 4, 6, 5, 5, 3, 2, 4, 4, 6, 5, 4, 5, 5, 4, 4, 5, 5, 7, 6, 5, 5, 3, 3, 4, 2, 3, 6, 4, 4, 7]

cp's OEIS Frontend

A058063 Number of prime factors (when counted with multiplicity) of sigma(n), the sum of divisors of n.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	1
5	2
6	3
7	3
8	2
9	1
10	3
11	3
12	3
13	2
14	4
15	4
16	1
17	3
18	2
19	3
20	3
21	5
22	4
23	4
24	4
25	1
26	3
27	4
28	4
29	3
30	5
31	5
32	3
33	5
34	4
35	5
36	2
37	2
38	4
39	4
40	4
41	3
42	6
43	3
44	4
45	3
46	5
47	5
48	3
49	2
50	2
51	5
52	3
53	4
54	5
55	5
56	5
57	5
58	4
59	4
60	5
61	2
62	6
63	4
64	1
65	4
66	6
67	3
68	4
69	6
70	6
71	5
72	3
73	2
74	3
75	3
76	4
77	6
78	5
79	5
80	3
81	2
82	4
83	4
84	6
85	5
86	4
87	5
88	5
89	4
90	4
91	5
92	5
93	7
94	6
95	5
96	5
97	3
98	3
99	4
100	2
101	3
102	6
103	4
104	4
105	7

n	a(n)
1	0
2	1
3	2
4	1
5	2
6	3
7	3
8	2
9	1
10	3
11	3
12	3
13	2
14	4
15	4
16	1
17	3
18	2
19	3
20	3
21	5
22	4
23	4
24	4
25	1
26	3
27	4
28	4
29	3
30	5
31	5
32	3
33	5
34	4
35	5
36	2
37	2
38	4
39	4
40	4
41	3
42	6
43	3
44	4
45	3
46	5
47	5
48	3
49	2
50	2
51	5
52	3
53	4
54	5
55	5
56	5
57	5
58	4
59	4
60	5
61	2
62	6
63	4
64	1
65	4
66	6
67	3
68	4
69	6
70	6
71	5
72	3
73	2
74	3
75	3
76	4
77	6
78	5
79	5
80	3
81	2
82	4
83	4
84	6
85	5
86	4
87	5
88	5
89	4
90	4
91	5
92	5
93	7
94	6
95	5
96	5
97	3
98	3
99	4
100	2
101	3
102	6
103	4
104	4
105	7

n	a(n)
1	0
2	1
3	2
4	1
5	2
6	3
7	3
8	2
9	1
10	3
11	3
12	3
13	2
14	4
15	4
16	1
17	3
18	2
19	3
20	3
21	5
22	4
23	4
24	4
25	1
26	3
27	4
28	4
29	3
30	5
31	5
32	3
33	5
34	4
35	5
36	2
37	2
38	4
39	4
40	4
41	3
42	6
43	3
44	4
45	3
46	5
47	5
48	3
49	2
50	2
51	5
52	3
53	4
54	5
55	5
56	5
57	5
58	4
59	4
60	5
61	2
62	6
63	4
64	1
65	4
66	6
67	3
68	4
69	6
70	6
71	5
72	3
73	2
74	3
75	3
76	4
77	6
78	5
79	5
80	3
81	2
82	4
83	4
84	6
85	5
86	4
87	5
88	5
89	4
90	4
91	5
92	5
93	7
94	6
95	5
96	5
97	3
98	3
99	4
100	2
101	3
102	6
103	4
104	4
105	7