25386490

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{19379}}^1$

素因数の和:19517

約数の個数: 16

約数和(自身を含む): 46046880

約数和(自身を除く): 20660390

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 19379, 38758, 96895, 193790, 2538649, 5077298, 12693245, 25386490]

約数ペア:

[(1, 25386490), (2, 12693245), (5, 5077298), (10, 2538649), (131, 193790), (262, 96895), (655, 38758), (1310, 19379)]