161749385

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:210

約数の個数: 64

約数和(自身を含む): 242956800

約数和(自身を除く): 81207415

約数列:

[1, 5, 7, 29, 35, 37, 59, 73, 145, 185, 203, 259, 295, 365, 413, 511, 1015, 1073, 1295, 1711, 2065, 2117, 2183, 2555, 2701, 4307, 5365, 7511, 8555, 10585, 10915, 11977, 13505, 14819, 15281, 18907, 21535, 30149, 37555, 59885, 63307, 74095, 76405, 78329, 94535, 124903, 150745, 159359, 316535, 391645, 443149, 548303, 624515, 796795, 874321, 1115513, 2215745, 2741515, 4371605, 4621411, 5577565, 23107055, 32349877, 161749385]

約数ペア:

[(1, 161749385), (5, 32349877), (7, 23107055), (29, 5577565), (35, 4621411), (37, 4371605), (59, 2741515), (73, 2215745), (145, 1115513), (185, 874321), (203, 796795), (259, 624515), (295, 548303), (365, 443149), (413, 391645), (511, 316535), (1015, 159359), (1073, 150745), (1295, 124903), (1711, 94535), (2065, 78329), (2117, 76405), (2183, 74095), (2555, 63307), (2701, 59885), (4307, 37555), (5365, 30149), (7511, 21535), (8555, 18907), (10585, 15281), (10915, 14819), (11977, 13505)]