20191280

素因数分解:

$2^4\times 5^1\times {\mathrm{252391}}^1$

素因数の和:252404

約数の個数: 20

約数和(自身を含む): 46944912

約数和(自身を除く): 26753632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252391, 504782, 1009564, 1261955, 2019128, 2523910, 4038256, 5047820, 10095640, 20191280]

約数ペア:

[(1, 20191280), (2, 10095640), (4, 5047820), (5, 4038256), (8, 2523910), (10, 2019128), (16, 1261955), (20, 1009564), (40, 504782), (80, 252391)]