131177360

素因数分解:

$2^4\times 5^1\times {\mathrm{1639717}}^1$

素因数の和:1639730

約数の個数: 20

約数和(自身を含む): 304987548

約数和(自身を除く): 173810188

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1639717, 3279434, 6558868, 8198585, 13117736, 16397170, 26235472, 32794340, 65588680, 131177360]

約数ペア:

[(1, 131177360), (2, 65588680), (4, 32794340), (5, 26235472), (8, 16397170), (10, 13117736), (16, 8198585), (20, 6558868), (40, 3279434), (80, 1639717)]