18275020

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1861}}^1$

素因数の和:2361

約数の個数: 24

約数和(自身を含む): 38476368

約数和(自身を除く): 20201348

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1861, 1964, 2455, 3722, 4910, 7444, 9305, 9820, 18610, 37220, 913751, 1827502, 3655004, 4568755, 9137510, 18275020]

約数ペア:

[(1, 18275020), (2, 9137510), (4, 4568755), (5, 3655004), (10, 1827502), (20, 913751), (491, 37220), (982, 18610), (1861, 9820), (1964, 9305), (2455, 7444), (3722, 4910)]