12990180

素因数分解:

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

素因数の和:373

約数の個数: 96

約数和(自身を含む): 42045696

約数和(自身を除く): 29055516

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 157, 197, 210, 314, 394, 420, 471, 591, 628, 785, 788, 942, 985, 1099, 1182, 1379, 1570, 1884, 1970, 2198, 2355, 2364, 2758, 2955, 3140, 3297, 3940, 4137, 4396, 4710, 5495, 5516, 5910, 6594, 6895, 8274, 9420, 10990, 11820, 13188, 13790, 16485, 16548, 20685, 21980, 27580, 30929, 32970, 41370, 61858, 65940, 82740, 92787, 123716, 154645, 185574, 216503, 309290, 371148, 433006, 463935, 618580, 649509, 866012, 927870, 1082515, 1299018, 1855740, 2165030, 2598036, 3247545, 4330060, 6495090, 12990180]

約数ペア:

[(1, 12990180), (2, 6495090), (3, 4330060), (4, 3247545), (5, 2598036), (6, 2165030), (7, 1855740), (10, 1299018), (12, 1082515), (14, 927870), (15, 866012), (20, 649509), (21, 618580), (28, 463935), (30, 433006), (35, 371148), (42, 309290), (60, 216503), (70, 185574), (84, 154645), (105, 123716), (140, 92787), (157, 82740), (197, 65940), (210, 61858), (314, 41370), (394, 32970), (420, 30929), (471, 27580), (591, 21980), (628, 20685), (785, 16548), (788, 16485), (942, 13790), (985, 13188), (1099, 11820), (1182, 10990), (1379, 9420), (1570, 8274), (1884, 6895), (1970, 6594), (2198, 5910), (2355, 5516), (2364, 5495), (2758, 4710), (2955, 4396), (3140, 4137), (3297, 3940)]