25980360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:375

約数の個数: 128

約数和(自身を含む): 90097920

約数和(自身を除く): 64117560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 157, 168, 197, 210, 280, 314, 394, 420, 471, 591, 628, 785, 788, 840, 942, 985, 1099, 1182, 1256, 1379, 1570, 1576, 1884, 1970, 2198, 2355, 2364, 2758, 2955, 3140, 3297, 3768, 3940, 4137, 4396, 4710, 4728, 5495, 5516, 5910, 6280, 6594, 6895, 7880, 8274, 8792, 9420, 10990, 11032, 11820, 13188, 13790, 16485, 16548, 18840, 20685, 21980, 23640, 26376, 27580, 30929, 32970, 33096, 41370, 43960, 55160, 61858, 65940, 82740, 92787, 123716, 131880, 154645, 165480, 185574, 216503, 247432, 309290, 371148, 433006, 463935, 618580, 649509, 742296, 866012, 927870, 1082515, 1237160, 1299018, 1732024, 1855740, 2165030, 2598036, 3247545, 3711480, 4330060, 5196072, 6495090, 8660120, 12990180, 25980360]

約数ペア:

[(1, 25980360), (2, 12990180), (3, 8660120), (4, 6495090), (5, 5196072), (6, 4330060), (7, 3711480), (8, 3247545), (10, 2598036), (12, 2165030), (14, 1855740), (15, 1732024), (20, 1299018), (21, 1237160), (24, 1082515), (28, 927870), (30, 866012), (35, 742296), (40, 649509), (42, 618580), (56, 463935), (60, 433006), (70, 371148), (84, 309290), (105, 247432), (120, 216503), (140, 185574), (157, 165480), (168, 154645), (197, 131880), (210, 123716), (280, 92787), (314, 82740), (394, 65940), (420, 61858), (471, 55160), (591, 43960), (628, 41370), (785, 33096), (788, 32970), (840, 30929), (942, 27580), (985, 26376), (1099, 23640), (1182, 21980), (1256, 20685), (1379, 18840), (1570, 16548), (1576, 16485), (1884, 13790), (1970, 13188), (2198, 11820), (2355, 11032), (2364, 10990), (2758, 9420), (2955, 8792), (3140, 8274), (3297, 7880), (3768, 6895), (3940, 6594), (4137, 6280), (4396, 5910), (4710, 5516), (4728, 5495)]