20791336405

素因数分解:

$5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{809}}^1\times {\mathrm{7129}}^1$

素因数の和:8053

約数の個数: 32

約数和(自身を含む): 28830297600

約数和(自身を除く): 8038961195

約数列:

[1, 5, 7, 35, 103, 515, 721, 809, 3605, 4045, 5663, 7129, 28315, 35645, 49903, 83327, 249515, 416635, 583289, 734287, 2916445, 3671435, 5140009, 5767361, 25700045, 28836805, 40371527, 201857635, 594038183, 2970190915, 4158267281, 20791336405]

約数ペア:

[(1, 20791336405), (5, 4158267281), (7, 2970190915), (35, 594038183), (103, 201857635), (515, 40371527), (721, 28836805), (809, 25700045), (3605, 5767361), (4045, 5140009), (5663, 3671435), (7129, 2916445), (28315, 734287), (35645, 583289), (49903, 416635), (83327, 249515)]