654080260

素因数分解:

$2^2\times 5^1\times {\mathrm{32704013}}^1$

素因数の和:32704022

約数の個数: 12

約数和(自身を含む): 1373568588

約数和(自身を除く): 719488328

約数列:

[1, 2, 4, 5, 10, 20, 32704013, 65408026, 130816052, 163520065, 327040130, 654080260]

約数ペア:

[(1, 654080260), (2, 327040130), (4, 163520065), (5, 130816052), (10, 65408026), (20, 32704013)]