81380004

素因数分解:

$2^2\times 3^1\times {\mathrm{6781667}}^1$

素因数の和:6781674

約数の個数: 12

約数和(自身を含む): 189886704

約数和(自身を除く): 108506700

約数列:

[1, 2, 3, 4, 6, 12, 6781667, 13563334, 20345001, 27126668, 40690002, 81380004]

約数ペア:

[(1, 81380004), (2, 40690002), (3, 27126668), (4, 20345001), (6, 13563334), (12, 6781667)]