248458520

素因数分解:

$2^3\times 5^1\times {\mathrm{1949}}^1\times {\mathrm{3187}}^1$

素因数の和:5147

約数の個数: 32

約数和(自身を含む): 559494000

約数和(自身を除く): 311035480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1949, 3187, 3898, 6374, 7796, 9745, 12748, 15592, 15935, 19490, 25496, 31870, 38980, 63740, 77960, 127480, 6211463, 12422926, 24845852, 31057315, 49691704, 62114630, 124229260, 248458520]

約数ペア:

[(1, 248458520), (2, 124229260), (4, 62114630), (5, 49691704), (8, 31057315), (10, 24845852), (20, 12422926), (40, 6211463), (1949, 127480), (3187, 77960), (3898, 63740), (6374, 38980), (7796, 31870), (9745, 25496), (12748, 19490), (15592, 15935)]