20751020

素因数分解:

$2^2\times 5^1\times {\mathrm{919}}^1\times {\mathrm{1129}}^1$

素因数の和:2057

約数の個数: 24

約数和(自身を含む): 43663200

約数和(自身を除く): 22912180

約数列:

[1, 2, 4, 5, 10, 20, 919, 1129, 1838, 2258, 3676, 4516, 4595, 5645, 9190, 11290, 18380, 22580, 1037551, 2075102, 4150204, 5187755, 10375510, 20751020]

約数ペア:

[(1, 20751020), (2, 10375510), (4, 5187755), (5, 4150204), (10, 2075102), (20, 1037551), (919, 22580), (1129, 18380), (1838, 11290), (2258, 9190), (3676, 5645), (4516, 4595)]