30256660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{216119}}^1$

素因数の和:216135

約数の個数: 24

約数和(自身を含む): 72616320

約数和(自身を除く): 42359660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 216119, 432238, 864476, 1080595, 1512833, 2161190, 3025666, 4322380, 6051332, 7564165, 15128330, 30256660]

約数ペア:

[(1, 30256660), (2, 15128330), (4, 7564165), (5, 6051332), (7, 4322380), (10, 3025666), (14, 2161190), (20, 1512833), (28, 1080595), (35, 864476), (70, 432238), (140, 216119)]