18918340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135131}}^1$

素因数の和:135147

約数の個数: 24

約数和(自身を含む): 45404352

約数和(自身を除く): 26486012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135131, 270262, 540524, 675655, 945917, 1351310, 1891834, 2702620, 3783668, 4729585, 9459170, 18918340]

約数ペア:

[(1, 18918340), (2, 9459170), (4, 4729585), (5, 3783668), (7, 2702620), (10, 1891834), (14, 1351310), (20, 945917), (28, 675655), (35, 540524), (70, 270262), (140, 135131)]