20216750

素因数分解:

$2^1\times 5^3\times {\mathrm{193}}^1\times {\mathrm{419}}^1$

素因数の和:629

約数の個数: 32

約数和(自身を含む): 38132640

約数和(自身を除く): 17915890

約数列:

[1, 2, 5, 10, 25, 50, 125, 193, 250, 386, 419, 838, 965, 1930, 2095, 4190, 4825, 9650, 10475, 20950, 24125, 48250, 52375, 80867, 104750, 161734, 404335, 808670, 2021675, 4043350, 10108375, 20216750]

約数ペア:

[(1, 20216750), (2, 10108375), (5, 4043350), (10, 2021675), (25, 808670), (50, 404335), (125, 161734), (193, 104750), (250, 80867), (386, 52375), (419, 48250), (838, 24125), (965, 20950), (1930, 10475), (2095, 9650), (4190, 4825)]