19378160

素因数分解:

$2^4\times 5^1\times {\mathrm{242227}}^1$

素因数の和:242240

約数の個数: 20

約数和(自身を含む): 45054408

約数和(自身を除く): 25676248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 242227, 484454, 968908, 1211135, 1937816, 2422270, 3875632, 4844540, 9689080, 19378160]

約数ペア:

[(1, 19378160), (2, 9689080), (4, 4844540), (5, 3875632), (8, 2422270), (10, 1937816), (16, 1211135), (20, 968908), (40, 484454), (80, 242227)]