2018021360

素因数分解:

$2^4\times 5^1\times {\mathrm{25225267}}^1$

素因数の和:25225280

約数の個数: 20

約数和(自身を含む): 4691899848

約数和(自身を除く): 2673878488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25225267, 50450534, 100901068, 126126335, 201802136, 252252670, 403604272, 504505340, 1009010680, 2018021360]

約数ペア:

[(1, 2018021360), (2, 1009010680), (4, 504505340), (5, 403604272), (8, 252252670), (10, 201802136), (16, 126126335), (20, 100901068), (40, 50450534), (80, 25225267)]