201990318466

素因数分解:

$2^1\times {\mathrm{157}}^1\times {\mathrm{643281269}}^1$

素因数の和:643281428

約数の個数: 8

約数和(自身を含む): 304915321980

約数和(自身を除く): 102925003514

約数列:

[1, 2, 157, 314, 643281269, 1286562538, 100995159233, 201990318466]

約数ペア:

[(1, 201990318466), (2, 100995159233), (157, 1286562538), (314, 643281269)]