18726740

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1907}}^1$

素因数の和:2407

約数の個数: 24

約数和(自身を含む): 39426912

約数和(自身を除く): 20700172

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1907, 1964, 2455, 3814, 4910, 7628, 9535, 9820, 19070, 38140, 936337, 1872674, 3745348, 4681685, 9363370, 18726740]

約数ペア:

[(1, 18726740), (2, 9363370), (4, 4681685), (5, 3745348), (10, 1872674), (20, 936337), (491, 38140), (982, 19070), (1907, 9820), (1964, 9535), (2455, 7628), (3814, 4910)]