257226690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{1224889}}^1$

素因数の和:1224906

約数の個数: 32

約数和(自身を含む): 705536640

約数和(自身を除く): 448309950

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 1224889, 2449778, 3674667, 6124445, 7349334, 8574223, 12248890, 17148446, 18373335, 25722669, 36746670, 42871115, 51445338, 85742230, 128613345, 257226690]

約数ペア:

[(1, 257226690), (2, 128613345), (3, 85742230), (5, 51445338), (6, 42871115), (7, 36746670), (10, 25722669), (14, 18373335), (15, 17148446), (21, 12248890), (30, 8574223), (35, 7349334), (42, 6124445), (70, 3674667), (105, 2449778), (210, 1224889)]