20191990220

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9801937}}^1$

素因数の和:9802049

約数の個数: 24

約数和(自身を含む): 42814865184

約数和(自身を除く): 22622874964

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9801937, 19603874, 39207748, 49009685, 98019370, 196038740, 1009599511, 2019199022, 4038398044, 5047997555, 10095995110, 20191990220]

約数ペア:

[(1, 20191990220), (2, 10095995110), (4, 5047997555), (5, 4038398044), (10, 2019199022), (20, 1009599511), (103, 196038740), (206, 98019370), (412, 49009685), (515, 39207748), (1030, 19603874), (2060, 9801937)]