389611075

素因数分解:

$5^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{20807}}^1$

素因数の和:20931

約数の個数: 24

約数和(自身を含む): 557321472

約数和(自身を除く): 167710397

約数列:

[1, 5, 7, 25, 35, 107, 175, 535, 749, 2675, 3745, 18725, 20807, 104035, 145649, 520175, 728245, 2226349, 3641225, 11131745, 15584443, 55658725, 77922215, 389611075]

約数ペア:

[(1, 389611075), (5, 77922215), (7, 55658725), (25, 15584443), (35, 11131745), (107, 3641225), (175, 2226349), (535, 728245), (749, 520175), (2675, 145649), (3745, 104035), (18725, 20807)]