257156942

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{3919}}^1$

素因数の和:4080

約数の個数: 32

約数和(自身を含む): 455347200

約数和(自身を除く): 198190258

約数列:

[1, 2, 7, 14, 43, 86, 109, 218, 301, 602, 763, 1526, 3919, 4687, 7838, 9374, 27433, 32809, 54866, 65618, 168517, 337034, 427171, 854342, 1179619, 2359238, 2990197, 5980394, 18368353, 36736706, 128578471, 257156942]

約数ペア:

[(1, 257156942), (2, 128578471), (7, 36736706), (14, 18368353), (43, 5980394), (86, 2990197), (109, 2359238), (218, 1179619), (301, 854342), (602, 427171), (763, 337034), (1526, 168517), (3919, 65618), (4687, 54866), (7838, 32809), (9374, 27433)]