28660660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{204719}}^1$

素因数の和:204735

約数の個数: 24

約数和(自身を含む): 68785920

約数和(自身を除く): 40125260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 204719, 409438, 818876, 1023595, 1433033, 2047190, 2866066, 4094380, 5732132, 7165165, 14330330, 28660660]

約数ペア:

[(1, 28660660), (2, 14330330), (4, 7165165), (5, 5732132), (7, 4094380), (10, 2866066), (14, 2047190), (20, 1433033), (28, 1023595), (35, 818876), (70, 409438), (140, 204719)]