20791820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{148513}}^1$

素因数の和:148529

約数の個数: 24

約数和(自身を含む): 49900704

約数和(自身を除く): 29108884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 148513, 297026, 594052, 742565, 1039591, 1485130, 2079182, 2970260, 4158364, 5197955, 10395910, 20791820]

約数ペア:

[(1, 20791820), (2, 10395910), (4, 5197955), (5, 4158364), (7, 2970260), (10, 2079182), (14, 1485130), (20, 1039591), (28, 742565), (35, 594052), (70, 297026), (140, 148513)]