18083020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10159}}^1$

素因数の和:10257

約数の個数: 24

約数和(自身を含む): 38404800

約数和(自身を除く): 20321780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10159, 20318, 40636, 50795, 101590, 203180, 904151, 1808302, 3616604, 4520755, 9041510, 18083020]

約数ペア:

[(1, 18083020), (2, 9041510), (4, 4520755), (5, 3616604), (10, 1808302), (20, 904151), (89, 203180), (178, 101590), (356, 50795), (445, 40636), (890, 20318), (1780, 10159)]