38640440

素因数分解:

$2^3\times 5^1\times {\mathrm{966011}}^1$

素因数の和:966022

約数の個数: 16

約数和(自身を含む): 86941080

約数和(自身を除く): 48300640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 966011, 1932022, 3864044, 4830055, 7728088, 9660110, 19320220, 38640440]

約数ペア:

[(1, 38640440), (2, 19320220), (4, 9660110), (5, 7728088), (8, 4830055), (10, 3864044), (20, 1932022), (40, 966011)]