9955975

素因数分解:

$5^2\times {\mathrm{71}}^2\times {\mathrm{79}}^1$

素因数の和:231

約数の個数: 18

約数和(自身を含む): 12680240

約数和(自身を除く): 2724265

約数列:

[1, 5, 25, 71, 79, 355, 395, 1775, 1975, 5041, 5609, 25205, 28045, 126025, 140225, 398239, 1991195, 9955975]

約数ペア:

[(1, 9955975), (5, 1991195), (25, 398239), (71, 140225), (79, 126025), (355, 28045), (395, 25205), (1775, 5609), (1975, 5041)]