311301140

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{40013}}^1$

素因数の和:40411

約数の個数: 24

約数和(自身を含む): 655429320

約数和(自身を除く): 344128180

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 40013, 80026, 160052, 200065, 400130, 800260, 15565057, 31130114, 62260228, 77825285, 155650570, 311301140]

約数ペア:

[(1, 311301140), (2, 155650570), (4, 77825285), (5, 62260228), (10, 31130114), (20, 15565057), (389, 800260), (778, 400130), (1556, 200065), (1945, 160052), (3890, 80026), (7780, 40013)]