20875280

素因数分解:

$2^4\times 5^1\times {\mathrm{260941}}^1$

素因数の和:260954

約数の個数: 20

約数和(自身を含む): 48535212

約数和(自身を除く): 27659932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 260941, 521882, 1043764, 1304705, 2087528, 2609410, 4175056, 5218820, 10437640, 20875280]

約数ペア:

[(1, 20875280), (2, 10437640), (4, 5218820), (5, 4175056), (8, 2609410), (10, 2087528), (16, 1304705), (20, 1043764), (40, 521882), (80, 260941)]