64405168

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{25639}}^1$

素因数の和:25804

約数の個数: 20

約数和(自身を含む): 125584720

約数和(自身を除く): 61179552

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 25639, 51278, 102556, 205112, 410224, 4025323, 8050646, 16101292, 32202584, 64405168]

約数ペア:

[(1, 64405168), (2, 32202584), (4, 16101292), (8, 8050646), (16, 4025323), (157, 410224), (314, 205112), (628, 102556), (1256, 51278), (2512, 25639)]