18057140

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 39674880

約数和(自身を除く): 21617740

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 163, 191, 290, 326, 382, 580, 652, 764, 815, 955, 1630, 1910, 3260, 3820, 4727, 5539, 9454, 11078, 18908, 22156, 23635, 27695, 31133, 47270, 55390, 62266, 94540, 110780, 124532, 155665, 311330, 622660, 902857, 1805714, 3611428, 4514285, 9028570, 18057140]

約数ペア:

[(1, 18057140), (2, 9028570), (4, 4514285), (5, 3611428), (10, 1805714), (20, 902857), (29, 622660), (58, 311330), (116, 155665), (145, 124532), (163, 110780), (191, 94540), (290, 62266), (326, 55390), (382, 47270), (580, 31133), (652, 27695), (764, 23635), (815, 22156), (955, 18908), (1630, 11078), (1910, 9454), (3260, 5539), (3820, 4727)]