18232780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47981}}^1$

素因数の和:48009

約数の個数: 24

約数和(自身を含む): 40304880

約数和(自身を除く): 22072100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 47981, 95962, 191924, 239905, 479810, 911639, 959620, 1823278, 3646556, 4558195, 9116390, 18232780]

約数ペア:

[(1, 18232780), (2, 9116390), (4, 4558195), (5, 3646556), (10, 1823278), (19, 959620), (20, 911639), (38, 479810), (76, 239905), (95, 191924), (190, 95962), (380, 47981)]