19844080

素因数分解:

$2^4\times 5^1\times {\mathrm{248051}}^1$

素因数の和:248064

約数の個数: 20

約数和(自身を含む): 46137672

約数和(自身を除く): 26293592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 248051, 496102, 992204, 1240255, 1984408, 2480510, 3968816, 4961020, 9922040, 19844080]

約数ペア:

[(1, 19844080), (2, 9922040), (4, 4961020), (5, 3968816), (8, 2480510), (10, 1984408), (16, 1240255), (20, 992204), (40, 496102), (80, 248051)]