262496440

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{21101}}^1$

素因数の和:21423

約数の個数: 32

約数和(自身を含む): 592544160

約数和(自身を除く): 330047720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 6220, 12440, 21101, 42202, 84404, 105505, 168808, 211010, 422020, 844040, 6562411, 13124822, 26249644, 32812055, 52499288, 65624110, 131248220, 262496440]

約数ペア:

[(1, 262496440), (2, 131248220), (4, 65624110), (5, 52499288), (8, 32812055), (10, 26249644), (20, 13124822), (40, 6562411), (311, 844040), (622, 422020), (1244, 211010), (1555, 168808), (2488, 105505), (3110, 84404), (6220, 42202), (12440, 21101)]