81304228

素因数分解:

$2^2\times {\mathrm{43}}^2\times {\mathrm{10993}}^1$

素因数の和:11083

約数の個数: 18

約数和(自身を含む): 145681494

約数和(自身を除く): 64377266

約数列:

[1, 2, 4, 43, 86, 172, 1849, 3698, 7396, 10993, 21986, 43972, 472699, 945398, 1890796, 20326057, 40652114, 81304228]

約数ペア:

[(1, 81304228), (2, 40652114), (4, 20326057), (43, 1890796), (86, 945398), (172, 472699), (1849, 43972), (3698, 21986), (7396, 10993)]