20207680

素因数分解:

$2^6\times 5^1\times {\mathrm{63149}}^1$

素因数の和:63166

約数の個数: 28

約数和(自身を含む): 48120300

約数和(自身を除く): 27912620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63149, 126298, 252596, 315745, 505192, 631490, 1010384, 1262980, 2020768, 2525960, 4041536, 5051920, 10103840, 20207680]

約数ペア:

[(1, 20207680), (2, 10103840), (4, 5051920), (5, 4041536), (8, 2525960), (10, 2020768), (16, 1262980), (20, 1010384), (32, 631490), (40, 505192), (64, 315745), (80, 252596), (160, 126298), (320, 63149)]