128565915

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{4241}}^1$

素因数の和:4339

約数の個数: 32

約数和(自身を含む): 215018496

約数和(自身を除く): 86452581

約数列:

[1, 3, 5, 15, 43, 47, 129, 141, 215, 235, 645, 705, 2021, 4241, 6063, 10105, 12723, 21205, 30315, 63615, 182363, 199327, 547089, 597981, 911815, 996635, 2735445, 2989905, 8571061, 25713183, 42855305, 128565915]

約数ペア:

[(1, 128565915), (3, 42855305), (5, 25713183), (15, 8571061), (43, 2989905), (47, 2735445), (129, 996635), (141, 911815), (215, 597981), (235, 547089), (645, 199327), (705, 182363), (2021, 63615), (4241, 30315), (6063, 21205), (10105, 12723)]