20377550

素因数分解:

$2^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{3739}}^1$

素因数の和:3860

約数の個数: 24

約数和(自身を含む): 38260200

約数和(自身を除く): 17882650

約数列:

[1, 2, 5, 10, 25, 50, 109, 218, 545, 1090, 2725, 3739, 5450, 7478, 18695, 37390, 93475, 186950, 407551, 815102, 2037755, 4075510, 10188775, 20377550]

約数ペア:

[(1, 20377550), (2, 10188775), (5, 4075510), (10, 2037755), (25, 815102), (50, 407551), (109, 186950), (218, 93475), (545, 37390), (1090, 18695), (2725, 7478), (3739, 5450)]