28437260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83639}}^1$

素因数の和:83665

約数の個数: 24

約数和(自身を含む): 63231840

約数和(自身を除く): 34794580

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 83639, 167278, 334556, 418195, 836390, 1421863, 1672780, 2843726, 5687452, 7109315, 14218630, 28437260]

約数ペア:

[(1, 28437260), (2, 14218630), (4, 7109315), (5, 5687452), (10, 2843726), (17, 1672780), (20, 1421863), (34, 836390), (68, 418195), (85, 334556), (170, 167278), (340, 83639)]