20470160

素因数分解:

$2^4\times 5^1\times {\mathrm{255877}}^1$

素因数の和:255890

約数の個数: 20

約数和(自身を含む): 47593308

約数和(自身を除く): 27123148

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 255877, 511754, 1023508, 1279385, 2047016, 2558770, 4094032, 5117540, 10235080, 20470160]

約数ペア:

[(1, 20470160), (2, 10235080), (4, 5117540), (5, 4094032), (8, 2558770), (10, 2047016), (16, 1279385), (20, 1023508), (40, 511754), (80, 255877)]