128280481

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{569}}^1$

素因数の和:733

約数の個数: 24

約数和(自身を含む): 154392480

約数和(自身を除く): 26111999

約数列:

[1, 7, 43, 49, 107, 301, 569, 749, 2107, 3983, 4601, 5243, 24467, 27881, 32207, 60883, 171269, 225449, 426181, 1198883, 2617969, 2983267, 18325783, 128280481]

約数ペア:

[(1, 128280481), (7, 18325783), (43, 2983267), (49, 2617969), (107, 1198883), (301, 426181), (569, 225449), (749, 171269), (2107, 60883), (3983, 32207), (4601, 27881), (5243, 24467)]