65216020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{23459}}^1$

素因数の和:23607

約数の個数: 24

約数和(自身を含む): 137944800

約数和(自身を除く): 72728780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 23459, 46918, 93836, 117295, 234590, 469180, 3260801, 6521602, 13043204, 16304005, 32608010, 65216020]

約数ペア:

[(1, 65216020), (2, 32608010), (4, 16304005), (5, 13043204), (10, 6521602), (20, 3260801), (139, 469180), (278, 234590), (556, 117295), (695, 93836), (1390, 46918), (2780, 23459)]