20109800

素因数分解:

$2^3\times 5^2\times {\mathrm{100549}}^1$

素因数の和:100565

約数の個数: 24

約数和(自身を含む): 46755750

約数和(自身を除く): 26645950

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 100549, 201098, 402196, 502745, 804392, 1005490, 2010980, 2513725, 4021960, 5027450, 10054900, 20109800]

約数ペア:

[(1, 20109800), (2, 10054900), (4, 5027450), (5, 4021960), (8, 2513725), (10, 2010980), (20, 1005490), (25, 804392), (40, 502745), (50, 402196), (100, 201098), (200, 100549)]