1661644420

素因数分解:

$2^2\times 5^1\times {\mathrm{4481}}^1\times {\mathrm{18541}}^1$

素因数の和:23031

約数の個数: 24

約数和(自身を含む): 3490420248

約数和(自身を除く): 1828775828

約数列:

[1, 2, 4, 5, 10, 20, 4481, 8962, 17924, 18541, 22405, 37082, 44810, 74164, 89620, 92705, 185410, 370820, 83082221, 166164442, 332328884, 415411105, 830822210, 1661644420]

約数ペア:

[(1, 1661644420), (2, 830822210), (4, 415411105), (5, 332328884), (10, 166164442), (20, 83082221), (4481, 370820), (8962, 185410), (17924, 92705), (18541, 89620), (22405, 74164), (37082, 44810)]