20759110

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2099}}^1$

素因数の和:2172

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 19157690

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 115, 215, 230, 430, 989, 1978, 2099, 4198, 4945, 9890, 10495, 20990, 48277, 90257, 96554, 180514, 241385, 451285, 482770, 902570, 2075911, 4151822, 10379555, 20759110]

約数ペア:

[(1, 20759110), (2, 10379555), (5, 4151822), (10, 2075911), (23, 902570), (43, 482770), (46, 451285), (86, 241385), (115, 180514), (215, 96554), (230, 90257), (430, 48277), (989, 20990), (1978, 10495), (2099, 9890), (4198, 4945)]