20981726495

素因数分解:

$5^1\times {\mathrm{271}}^2\times {\mathrm{57139}}^1$

素因数の和:57686

約数の個数: 12

約数和(自身を含む): 25271764920

約数和(自身を除く): 4290038425

約数列:

[1, 5, 271, 1355, 57139, 73441, 285695, 367205, 15484669, 77423345, 4196345299, 20981726495]

約数ペア:

[(1, 20981726495), (5, 4196345299), (271, 77423345), (1355, 15484669), (57139, 367205), (73441, 285695)]