18068780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10151}}^1$

素因数の和:10249

約数の個数: 24

約数和(自身を含む): 38374560

約数和(自身を除く): 20305780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10151, 20302, 40604, 50755, 101510, 203020, 903439, 1806878, 3613756, 4517195, 9034390, 18068780]

約数ペア:

[(1, 18068780), (2, 9034390), (4, 4517195), (5, 3613756), (10, 1806878), (20, 903439), (89, 203020), (178, 101510), (356, 50755), (445, 40604), (890, 20302), (1780, 10151)]