20001476864

素因数分解:

$2^8\times {\mathrm{78130769}}^1$

素因数の和:78130785

約数の個数: 18

約数和(自身を含む): 39924823470

約数和(自身を除く): 19923346606

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 78130769, 156261538, 312523076, 625046152, 1250092304, 2500184608, 5000369216, 10000738432, 20001476864]

約数ペア:

[(1, 20001476864), (2, 10000738432), (4, 5000369216), (8, 2500184608), (16, 1250092304), (32, 625046152), (64, 312523076), (128, 156261538), (256, 78130769)]