18800180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{134287}}^1$

素因数の和:134303

約数の個数: 24

約数和(自身を含む): 45120768

約数和(自身を除く): 26320588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 134287, 268574, 537148, 671435, 940009, 1342870, 1880018, 2685740, 3760036, 4700045, 9400090, 18800180]

約数ペア:

[(1, 18800180), (2, 9400090), (4, 4700045), (5, 3760036), (7, 2685740), (10, 1880018), (14, 1342870), (20, 940009), (28, 671435), (35, 537148), (70, 268574), (140, 134287)]