20007280

素因数分解:

$2^4\times 5^1\times {\mathrm{250091}}^1$

素因数の和:250104

約数の個数: 20

約数和(自身を含む): 46517112

約数和(自身を除く): 26509832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 250091, 500182, 1000364, 1250455, 2000728, 2500910, 4001456, 5001820, 10003640, 20007280]

約数ペア:

[(1, 20007280), (2, 10003640), (4, 5001820), (5, 4001456), (8, 2500910), (10, 2000728), (16, 1250455), (20, 1000364), (40, 500182), (80, 250091)]