2020371920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{515401}}^1$

素因数の和:515428

約数の個数: 60

約数和(自身を含む): 5464292004

約数和(自身を除く): 3443920084

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 515401, 1030802, 2061604, 2577005, 3607807, 4123208, 5154010, 7215614, 8246416, 10308020, 14431228, 18039035, 20616040, 25254649, 28862456, 36078070, 41232080, 50509298, 57724912, 72156140, 101018596, 126273245, 144312280, 202037192, 252546490, 288624560, 404074384, 505092980, 1010185960, 2020371920]

約数ペア:

[(1, 2020371920), (2, 1010185960), (4, 505092980), (5, 404074384), (7, 288624560), (8, 252546490), (10, 202037192), (14, 144312280), (16, 126273245), (20, 101018596), (28, 72156140), (35, 57724912), (40, 50509298), (49, 41232080), (56, 36078070), (70, 28862456), (80, 25254649), (98, 20616040), (112, 18039035), (140, 14431228), (196, 10308020), (245, 8246416), (280, 7215614), (392, 5154010), (490, 4123208), (560, 3607807), (784, 2577005), (980, 2061604), (1960, 1030802), (3920, 515401)]