821805825

素因数分解:

$3^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{1361}}^1$

素因数の和:1554

約数の個数: 48

約数和(自身を含む): 1390286016

約数和(自身を除く): 568480191

約数列:

[1, 3, 5, 15, 25, 75, 83, 97, 249, 291, 415, 485, 1245, 1361, 1455, 2075, 2425, 4083, 6225, 6805, 7275, 8051, 20415, 24153, 34025, 40255, 102075, 112963, 120765, 132017, 201275, 338889, 396051, 564815, 603825, 660085, 1694445, 1980255, 2824075, 3300425, 8472225, 9901275, 10957411, 32872233, 54787055, 164361165, 273935275, 821805825]

約数ペア:

[(1, 821805825), (3, 273935275), (5, 164361165), (15, 54787055), (25, 32872233), (75, 10957411), (83, 9901275), (97, 8472225), (249, 3300425), (291, 2824075), (415, 1980255), (485, 1694445), (1245, 660085), (1361, 603825), (1455, 564815), (2075, 396051), (2425, 338889), (4083, 201275), (6225, 132017), (6805, 120765), (7275, 112963), (8051, 102075), (20415, 40255), (24153, 34025)]