19198160

素因数分解:

$2^4\times 5^1\times {\mathrm{239977}}^1$

素因数の和:239990

約数の個数: 20

約数和(自身を含む): 44635908

約数和(自身を除く): 25437748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239977, 479954, 959908, 1199885, 1919816, 2399770, 3839632, 4799540, 9599080, 19198160]

約数ペア:

[(1, 19198160), (2, 9599080), (4, 4799540), (5, 3839632), (8, 2399770), (10, 1919816), (16, 1199885), (20, 959908), (40, 479954), (80, 239977)]