257112880

素因数分解:

$2^4\times 5^1\times {\mathrm{739}}^1\times {\mathrm{4349}}^1$

素因数の和:5101

約数の個数: 40

約数和(自身を含む): 598734000

約数和(自身を除く): 341621120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 739, 1478, 2956, 3695, 4349, 5912, 7390, 8698, 11824, 14780, 17396, 21745, 29560, 34792, 43490, 59120, 69584, 86980, 173960, 347920, 3213911, 6427822, 12855644, 16069555, 25711288, 32139110, 51422576, 64278220, 128556440, 257112880]

約数ペア:

[(1, 257112880), (2, 128556440), (4, 64278220), (5, 51422576), (8, 32139110), (10, 25711288), (16, 16069555), (20, 12855644), (40, 6427822), (80, 3213911), (739, 347920), (1478, 173960), (2956, 86980), (3695, 69584), (4349, 59120), (5912, 43490), (7390, 34792), (8698, 29560), (11824, 21745), (14780, 17396)]