20432180

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7457}}^1$

素因数の和:7603

約数の個数: 24

約数和(自身を含む): 43226568

約数和(自身を除く): 22794388

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 7457, 14914, 29828, 37285, 74570, 149140, 1021609, 2043218, 4086436, 5108045, 10216090, 20432180]

約数ペア:

[(1, 20432180), (2, 10216090), (4, 5108045), (5, 4086436), (10, 2043218), (20, 1021609), (137, 149140), (274, 74570), (548, 37285), (685, 29828), (1370, 14914), (2740, 7457)]