257444670

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{1225927}}^1$

素因数の和:1225944

約数の個数: 32

約数和(自身を含む): 706134528

約数和(自身を除く): 448689858

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 1225927, 2451854, 3677781, 6129635, 7355562, 8581489, 12259270, 17162978, 18388905, 25744467, 36777810, 42907445, 51488934, 85814890, 128722335, 257444670]

約数ペア:

[(1, 257444670), (2, 128722335), (3, 85814890), (5, 51488934), (6, 42907445), (7, 36777810), (10, 25744467), (14, 18388905), (15, 17162978), (21, 12259270), (30, 8581489), (35, 7355562), (42, 6129635), (70, 3677781), (105, 2451854), (210, 1225927)]