81008680

素因数分解:

$2^3\times 5^1\times {\mathrm{2025217}}^1$

素因数の和:2025228

約数の個数: 16

約数和(自身を含む): 182269620

約数和(自身を除く): 101260940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2025217, 4050434, 8100868, 10126085, 16201736, 20252170, 40504340, 81008680]

約数ペア:

[(1, 81008680), (2, 40504340), (4, 20252170), (5, 16201736), (8, 10126085), (10, 8100868), (20, 4050434), (40, 2025217)]