12940802905

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{637321}}^1$

素因数の和:637488

約数の個数: 16

約数和(自身を含む): 16152288768

約数和(自身を除く): 3211485863

約数列:

[1, 5, 31, 131, 155, 655, 4061, 20305, 637321, 3186605, 19756951, 83489051, 98784755, 417445255, 2588160581, 12940802905]

約数ペア:

[(1, 12940802905), (5, 2588160581), (31, 417445255), (131, 98784755), (155, 83489051), (655, 19756951), (4061, 3186605), (20305, 637321)]