30811235

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{5209}}^1$

素因数の和:5247

約数の個数: 24

約数和(自身を含む): 45764640

約数和(自身を除く): 14953405

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 5209, 5915, 26045, 36463, 67717, 182315, 338585, 474019, 880321, 2370095, 4401605, 6162247, 30811235]

約数ペア:

[(1, 30811235), (5, 6162247), (7, 4401605), (13, 2370095), (35, 880321), (65, 474019), (91, 338585), (169, 182315), (455, 67717), (845, 36463), (1183, 26045), (5209, 5915)]