28990220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{207073}}^1$

素因数の和:207089

約数の個数: 24

約数和(自身を含む): 69576864

約数和(自身を除く): 40586644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 207073, 414146, 828292, 1035365, 1449511, 2070730, 2899022, 4141460, 5798044, 7247555, 14495110, 28990220]

約数ペア:

[(1, 28990220), (2, 14495110), (4, 7247555), (5, 5798044), (7, 4141460), (10, 2899022), (14, 2070730), (20, 1449511), (28, 1035365), (35, 828292), (70, 414146), (140, 207073)]