42538975

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{419}}^1$

素因数の和:591

約数の個数: 24

約数和(自身を含む): 54996480

約数和(自身を除く): 12457505

約数列:

[1, 5, 25, 31, 131, 155, 419, 655, 775, 2095, 3275, 4061, 10475, 12989, 20305, 54889, 64945, 101525, 274445, 324725, 1372225, 1701559, 8507795, 42538975]

約数ペア:

[(1, 42538975), (5, 8507795), (25, 1701559), (31, 1372225), (131, 324725), (155, 274445), (419, 101525), (655, 64945), (775, 54889), (2095, 20305), (3275, 12989), (4061, 10475)]