1999798045

素因数分解:

$5^1\times 7^3\times {\mathrm{103}}^1\times {\mathrm{11321}}^1$

素因数の和:11450

約数の個数: 32

約数和(自身を含む): 2825971200

約数和(自身を除く): 826173155

約数列:

[1, 5, 7, 35, 49, 103, 245, 343, 515, 721, 1715, 3605, 5047, 11321, 25235, 35329, 56605, 79247, 176645, 396235, 554729, 1166063, 2773645, 3883103, 5830315, 8162441, 19415515, 40812205, 57137087, 285685435, 399959609, 1999798045]

約数ペア:

[(1, 1999798045), (5, 399959609), (7, 285685435), (35, 57137087), (49, 40812205), (103, 19415515), (245, 8162441), (343, 5830315), (515, 3883103), (721, 2773645), (1715, 1166063), (3605, 554729), (5047, 396235), (11321, 176645), (25235, 79247), (35329, 56605)]