81042440

素因数分解:

$2^3\times 5^1\times {\mathrm{2026061}}^1$

素因数の和:2026072

約数の個数: 16

約数和(自身を含む): 182345580

約数和(自身を除く): 101303140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2026061, 4052122, 8104244, 10130305, 16208488, 20260610, 40521220, 81042440]

約数ペア:

[(1, 81042440), (2, 40521220), (4, 20260610), (5, 16208488), (8, 10130305), (10, 8104244), (20, 4052122), (40, 2026061)]