81054440

素因数分解:

$2^3\times 5^1\times {\mathrm{2026361}}^1$

素因数の和:2026372

約数の個数: 16

約数和(自身を含む): 182372580

約数和(自身を除く): 101318140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2026361, 4052722, 8105444, 10131805, 16210888, 20263610, 40527220, 81054440]

約数ペア:

[(1, 81054440), (2, 40527220), (4, 20263610), (5, 16210888), (8, 10131805), (10, 8105444), (20, 4052722), (40, 2026361)]