1990996225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^3\times {\mathrm{683}}^1$

素因数の和:767

約数の個数: 48

約数和(自身を含む): 2763305280

約数和(自身を除く): 772309055

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 361, 425, 475, 683, 1615, 1805, 3415, 6137, 6859, 8075, 9025, 11611, 12977, 17075, 30685, 34295, 58055, 64885, 116603, 153425, 171475, 220609, 246563, 290275, 324425, 583015, 1103045, 1232815, 2915075, 4191571, 4684697, 5515225, 6164075, 20957855, 23423485, 79639849, 104789275, 117117425, 398199245, 1990996225]

約数ペア:

[(1, 1990996225), (5, 398199245), (17, 117117425), (19, 104789275), (25, 79639849), (85, 23423485), (95, 20957855), (323, 6164075), (361, 5515225), (425, 4684697), (475, 4191571), (683, 2915075), (1615, 1232815), (1805, 1103045), (3415, 583015), (6137, 324425), (6859, 290275), (8075, 246563), (9025, 220609), (11611, 171475), (12977, 153425), (17075, 116603), (30685, 64885), (34295, 58055)]