16872880

素因数分解:

$2^4\times 5^1\times {\mathrm{210911}}^1$

素因数の和:210924

約数の個数: 20

約数和(自身を含む): 39229632

約数和(自身を除く): 22356752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 210911, 421822, 843644, 1054555, 1687288, 2109110, 3374576, 4218220, 8436440, 16872880]

約数ペア:

[(1, 16872880), (2, 8436440), (4, 4218220), (5, 3374576), (8, 2109110), (10, 1687288), (16, 1054555), (20, 843644), (40, 421822), (80, 210911)]