81105664

素因数分解:

$2^8\times {\mathrm{316819}}^1$

素因数の和:316835

約数の個数: 18

約数和(自身を含む): 161895020

約数和(自身を除く): 80789356

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 316819, 633638, 1267276, 2534552, 5069104, 10138208, 20276416, 40552832, 81105664]

約数ペア:

[(1, 81105664), (2, 40552832), (4, 20276416), (8, 10138208), (16, 5069104), (32, 2534552), (64, 1267276), (128, 633638), (256, 316819)]