81580660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{582719}}^1$

素因数の和:582735

約数の個数: 24

約数和(自身を含む): 195793920

約数和(自身を除く): 114213260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 582719, 1165438, 2330876, 2913595, 4079033, 5827190, 8158066, 11654380, 16316132, 20395165, 40790330, 81580660]

約数ペア:

[(1, 81580660), (2, 40790330), (4, 20395165), (5, 16316132), (7, 11654380), (10, 8158066), (14, 5827190), (20, 4079033), (28, 2913595), (35, 2330876), (70, 1165438), (140, 582719)]