820052080

素因数分解:

$2^4\times 5^1\times {\mathrm{10250651}}^1$

素因数の和:10250664

約数の個数: 20

約数和(自身を含む): 1906621272

約数和(自身を除く): 1086569192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10250651, 20501302, 41002604, 51253255, 82005208, 102506510, 164010416, 205013020, 410026040, 820052080]

約数ペア:

[(1, 820052080), (2, 410026040), (4, 205013020), (5, 164010416), (8, 102506510), (10, 82005208), (16, 51253255), (20, 41002604), (40, 20501302), (80, 10250651)]