28437800

素因数分解:

$2^3\times 5^2\times {\mathrm{142189}}^1$

素因数の和:142205

約数の個数: 24

約数和(自身を含む): 66118350

約数和(自身を除く): 37680550

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 142189, 284378, 568756, 710945, 1137512, 1421890, 2843780, 3554725, 5687560, 7109450, 14218900, 28437800]

約数ペア:

[(1, 28437800), (2, 14218900), (4, 7109450), (5, 5687560), (8, 3554725), (10, 2843780), (20, 1421890), (25, 1137512), (40, 710945), (50, 568756), (100, 284378), (200, 142189)]