189990040

素因数分解:

$2^3\times 5^1\times {\mathrm{4749751}}^1$

素因数の和:4749762

約数の個数: 16

約数和(自身を含む): 427477680

約数和(自身を除く): 237487640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4749751, 9499502, 18999004, 23748755, 37998008, 47497510, 94995020, 189990040]

約数ペア:

[(1, 189990040), (2, 94995020), (4, 47497510), (5, 37998008), (8, 23748755), (10, 18999004), (20, 9499502), (40, 4749751)]