20289245

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{739}}^1$

素因数の和:797

約数の個数: 24

約数和(自身を含む): 27261600

約数和(自身を除く): 6972355

約数列:

[1, 5, 17, 19, 85, 95, 289, 323, 739, 1445, 1615, 3695, 5491, 12563, 14041, 27455, 62815, 70205, 213571, 238697, 1067855, 1193485, 4057849, 20289245]

約数ペア:

[(1, 20289245), (5, 4057849), (17, 1193485), (19, 1067855), (85, 238697), (95, 213571), (289, 70205), (323, 62815), (739, 27455), (1445, 14041), (1615, 12563), (3695, 5491)]