40105180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22531}}^1$

素因数の和:22629

約数の個数: 24

約数和(自身を含む): 85170960

約数和(自身を除く): 45065780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 22531, 45062, 90124, 112655, 225310, 450620, 2005259, 4010518, 8021036, 10026295, 20052590, 40105180]

約数ペア:

[(1, 40105180), (2, 20052590), (4, 10026295), (5, 8021036), (10, 4010518), (20, 2005259), (89, 450620), (178, 225310), (356, 112655), (445, 90124), (890, 45062), (1780, 22531)]