81863185

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1\times {\mathrm{1091}}^1$

素因数の和:1488

約数の個数: 16

約数和(自身を含む): 100900800

約数和(自身を除く): 19037615

約数列:

[1, 5, 43, 215, 349, 1091, 1745, 5455, 15007, 46913, 75035, 234565, 380759, 1903795, 16372637, 81863185]

約数ペア:

[(1, 81863185), (5, 16372637), (43, 1903795), (215, 380759), (349, 234565), (1091, 75035), (1745, 46913), (5455, 15007)]