18198260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22193}}^1$

素因数の和:22243

約数の個数: 24

約数和(自身を含む): 39150216

約数和(自身を除く): 20951956

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22193, 44386, 88772, 110965, 221930, 443860, 909913, 1819826, 3639652, 4549565, 9099130, 18198260]

約数ペア:

[(1, 18198260), (2, 9099130), (4, 4549565), (5, 3639652), (10, 1819826), (20, 909913), (41, 443860), (82, 221930), (164, 110965), (205, 88772), (410, 44386), (820, 22193)]