20111380

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18973}}^1$

素因数の和:19035

約数の個数: 24

約数和(自身を含む): 43033032

約数和(自身を除く): 22921652

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 18973, 37946, 75892, 94865, 189730, 379460, 1005569, 2011138, 4022276, 5027845, 10055690, 20111380]

約数ペア:

[(1, 20111380), (2, 10055690), (4, 5027845), (5, 4022276), (10, 2011138), (20, 1005569), (53, 379460), (106, 189730), (212, 94865), (265, 75892), (530, 37946), (1060, 18973)]