18017180

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{6481}}^1$

素因数の和:6629

約数の個数: 24

約数和(自身を含む): 38114160

約数和(自身を除く): 20096980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 6481, 12962, 25924, 32405, 64810, 129620, 900859, 1801718, 3603436, 4504295, 9008590, 18017180]

約数ペア:

[(1, 18017180), (2, 9008590), (4, 4504295), (5, 3603436), (10, 1801718), (20, 900859), (139, 129620), (278, 64810), (556, 32405), (695, 25924), (1390, 12962), (2780, 6481)]