209940965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{45491}}^1$

素因数の和:45580

約数の個数: 16

約数和(自身を含む): 275135616

約数和(自身を除く): 65194651

約数列:

[1, 5, 13, 65, 71, 355, 923, 4615, 45491, 227455, 591383, 2956915, 3229861, 16149305, 41988193, 209940965]

約数ペア:

[(1, 209940965), (5, 41988193), (13, 16149305), (65, 3229861), (71, 2956915), (355, 591383), (923, 227455), (4615, 45491)]