1708820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1987}}^1$

素因数の和:2039

約数の個数: 24

約数和(自身を含む): 3673824

約数和(自身を除く): 1965004

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1987, 3974, 7948, 9935, 19870, 39740, 85441, 170882, 341764, 427205, 854410, 1708820]

約数ペア:

[(1, 1708820), (2, 854410), (4, 427205), (5, 341764), (10, 170882), (20, 85441), (43, 39740), (86, 19870), (172, 9935), (215, 7948), (430, 3974), (860, 1987)]