20997250

素因数分解:

$2^1\times 5^3\times {\mathrm{47}}^1\times {\mathrm{1787}}^1$

素因数の和:1851

約数の個数: 32

約数和(自身を含む): 40165632

約数和(自身を除く): 19168382

約数列:

[1, 2, 5, 10, 25, 47, 50, 94, 125, 235, 250, 470, 1175, 1787, 2350, 3574, 5875, 8935, 11750, 17870, 44675, 83989, 89350, 167978, 223375, 419945, 446750, 839890, 2099725, 4199450, 10498625, 20997250]

約数ペア:

[(1, 20997250), (2, 10498625), (5, 4199450), (10, 2099725), (25, 839890), (47, 446750), (50, 419945), (94, 223375), (125, 167978), (235, 89350), (250, 83989), (470, 44675), (1175, 17870), (1787, 11750), (2350, 8935), (3574, 5875)]