15380420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{69911}}^1$

素因数の和:69931

約数の個数: 24

約数和(自身を含む): 35235648

約数和(自身を除く): 19855228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 69911, 139822, 279644, 349555, 699110, 769021, 1398220, 1538042, 3076084, 3845105, 7690210, 15380420]

約数ペア:

[(1, 15380420), (2, 7690210), (4, 3845105), (5, 3076084), (10, 1538042), (11, 1398220), (20, 769021), (22, 699110), (44, 349555), (55, 279644), (110, 139822), (220, 69911)]