39905905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{8647}}^1$

素因数の和:8736

約数の個数: 16

約数和(自身を含む): 52303104

約数和(自身を除く): 12397199

約数列:

[1, 5, 13, 65, 71, 355, 923, 4615, 8647, 43235, 112411, 562055, 613937, 3069685, 7981181, 39905905]

約数ペア:

[(1, 39905905), (5, 7981181), (13, 3069685), (65, 613937), (71, 562055), (355, 112411), (923, 43235), (4615, 8647)]