66212260

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{76991}}^1$

素因数の和:77043

約数の個数: 24

約数和(自身を含む): 142281216

約数和(自身を除く): 76068956

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 76991, 153982, 307964, 384955, 769910, 1539820, 3310613, 6621226, 13242452, 16553065, 33106130, 66212260]

約数ペア:

[(1, 66212260), (2, 33106130), (4, 16553065), (5, 13242452), (10, 6621226), (20, 3310613), (43, 1539820), (86, 769910), (172, 384955), (215, 307964), (430, 153982), (860, 76991)]