81897256

素因数分解:

$2^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{7349}}^1$

素因数の和:7561

約数の個数: 32

約数和(自身を含む): 176400000

約数和(自身を除く): 94502744

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 199, 398, 796, 1393, 1592, 2786, 5572, 7349, 11144, 14698, 29396, 51443, 58792, 102886, 205772, 411544, 1462451, 2924902, 5849804, 10237157, 11699608, 20474314, 40948628, 81897256]

約数ペア:

[(1, 81897256), (2, 40948628), (4, 20474314), (7, 11699608), (8, 10237157), (14, 5849804), (28, 2924902), (56, 1462451), (199, 411544), (398, 205772), (796, 102886), (1393, 58792), (1592, 51443), (2786, 29396), (5572, 14698), (7349, 11144)]