18905080

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20549}}^1$

素因数の和:20583

約数の個数: 32

約数和(自身を含む): 44388000

約数和(自身を除く): 25482920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 20549, 41098, 82196, 102745, 164392, 205490, 410980, 472627, 821960, 945254, 1890508, 2363135, 3781016, 4726270, 9452540, 18905080]

約数ペア:

[(1, 18905080), (2, 9452540), (4, 4726270), (5, 3781016), (8, 2363135), (10, 1890508), (20, 945254), (23, 821960), (40, 472627), (46, 410980), (92, 205490), (115, 164392), (184, 102745), (230, 82196), (460, 41098), (920, 20549)]