20634740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{147391}}^1$

素因数の和:147407

約数の個数: 24

約数和(自身を含む): 49523712

約数和(自身を除く): 28888972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 147391, 294782, 589564, 736955, 1031737, 1473910, 2063474, 2947820, 4126948, 5158685, 10317370, 20634740]

約数ペア:

[(1, 20634740), (2, 10317370), (4, 5158685), (5, 4126948), (7, 2947820), (10, 2063474), (14, 1473910), (20, 1031737), (28, 736955), (35, 589564), (70, 294782), (140, 147391)]