66686380

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{6961}}^1$

素因数の和:7449

約数の個数: 24

約数和(自身を含む): 140353920

約数和(自身を除く): 73667540

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2395, 4790, 6961, 9580, 13922, 27844, 34805, 69610, 139220, 3334319, 6668638, 13337276, 16671595, 33343190, 66686380]

約数ペア:

[(1, 66686380), (2, 33343190), (4, 16671595), (5, 13337276), (10, 6668638), (20, 3334319), (479, 139220), (958, 69610), (1916, 34805), (2395, 27844), (4790, 13922), (6961, 9580)]