20011295

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{757}}^1$

素因数の和:1090

約数の個数: 16

約数和(自身を含む): 25541568

約数和(自身を除く): 5530273

約数列:

[1, 5, 17, 85, 311, 757, 1555, 3785, 5287, 12869, 26435, 64345, 235427, 1177135, 4002259, 20011295]

約数ペア:

[(1, 20011295), (5, 4002259), (17, 1177135), (85, 235427), (311, 64345), (757, 26435), (1555, 12869), (3785, 5287)]