209320315

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{313}}^1\times {\mathrm{1021}}^1$

素因数の和:1470

約数の個数: 16

約数和(自身を含む): 254159136

約数和(自身を除く): 44838821

約数列:

[1, 5, 131, 313, 655, 1021, 1565, 5105, 41003, 133751, 205015, 319573, 668755, 1597865, 41864063, 209320315]

約数ペア:

[(1, 209320315), (5, 41864063), (131, 1597865), (313, 668755), (655, 319573), (1021, 205015), (1565, 133751), (5105, 41003)]