81581312

素因数分解:

$2^8\times {\mathrm{318677}}^1$

素因数の和:318693

約数の個数: 18

約数和(自身を含む): 162844458

約数和(自身を除く): 81263146

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 318677, 637354, 1274708, 2549416, 5098832, 10197664, 20395328, 40790656, 81581312]

約数ペア:

[(1, 81581312), (2, 40790656), (4, 20395328), (8, 10197664), (16, 5098832), (32, 2549416), (64, 1274708), (128, 637354), (256, 318677)]