81244120

素因数分解:

$2^3\times 5^1\times {\mathrm{2031103}}^1$

素因数の和:2031114

約数の個数: 16

約数和(自身を含む): 182799360

約数和(自身を除く): 101555240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2031103, 4062206, 8124412, 10155515, 16248824, 20311030, 40622060, 81244120]

約数ペア:

[(1, 81244120), (2, 40622060), (4, 20311030), (5, 16248824), (8, 10155515), (10, 8124412), (20, 4062206), (40, 2031103)]