64278220

素因数分解:

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

素因数の和:5097

約数の個数: 24

約数和(自身を含む): 135198000

約数和(自身を除く): 70919780

約数列:

[1, 2, 4, 5, 10, 20, 739, 1478, 2956, 3695, 4349, 7390, 8698, 14780, 17396, 21745, 43490, 86980, 3213911, 6427822, 12855644, 16069555, 32139110, 64278220]

約数ペア:

[(1, 64278220), (2, 32139110), (4, 16069555), (5, 12855644), (10, 6427822), (20, 3213911), (739, 86980), (1478, 43490), (2956, 21745), (3695, 17396), (4349, 14780), (7390, 8698)]