20188435890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{487997}}^1$

素因数の和:488211

約数の個数: 64

約数和(自身を含む): 55655195904

約数和(自身を除く): 35466760014

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 197, 210, 394, 591, 985, 1182, 1379, 1970, 2758, 2955, 4137, 5910, 6895, 8274, 13790, 20685, 41370, 487997, 975994, 1463991, 2439985, 2927982, 3415979, 4879970, 6831958, 7319955, 10247937, 14639910, 17079895, 20495874, 34159790, 51239685, 96135409, 102479370, 192270818, 288406227, 480677045, 576812454, 672947863, 961354090, 1345895726, 1442031135, 2018843589, 2884062270, 3364739315, 4037687178, 6729478630, 10094217945, 20188435890]

約数ペア:

[(1, 20188435890), (2, 10094217945), (3, 6729478630), (5, 4037687178), (6, 3364739315), (7, 2884062270), (10, 2018843589), (14, 1442031135), (15, 1345895726), (21, 961354090), (30, 672947863), (35, 576812454), (42, 480677045), (70, 288406227), (105, 192270818), (197, 102479370), (210, 96135409), (394, 51239685), (591, 34159790), (985, 20495874), (1182, 17079895), (1379, 14639910), (1970, 10247937), (2758, 7319955), (2955, 6831958), (4137, 4879970), (5910, 3415979), (6895, 2927982), (8274, 2439985), (13790, 1463991), (20685, 975994), (41370, 487997)]