18617740

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{2593}}^1$

素因数の和:2961

約数の個数: 24

約数和(自身を含む): 39221280

約数和(自身を除く): 20603540

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 2593, 3590, 5186, 7180, 10372, 12965, 25930, 51860, 930887, 1861774, 3723548, 4654435, 9308870, 18617740]

約数ペア:

[(1, 18617740), (2, 9308870), (4, 4654435), (5, 3723548), (10, 1861774), (20, 930887), (359, 51860), (718, 25930), (1436, 12965), (1795, 10372), (2593, 7180), (3590, 5186)]