81271265

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{11719}}^1$

素因数の和:11816

約数の個数: 16

約数和(自身を含む): 104073600

約数和(自身を除く): 22802335

約数列:

[1, 5, 19, 73, 95, 365, 1387, 6935, 11719, 58595, 222661, 855487, 1113305, 4277435, 16254253, 81271265]

約数ペア:

[(1, 81271265), (5, 16254253), (19, 4277435), (73, 1113305), (95, 855487), (365, 222661), (1387, 58595), (6935, 11719)]