209567905

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{10321}}^1$

素因数の和:10488

約数の個数: 16

約数和(自身を含む): 261600768

約数和(自身を除く): 52032863

約数列:

[1, 5, 31, 131, 155, 655, 4061, 10321, 20305, 51605, 319951, 1352051, 1599755, 6760255, 41913581, 209567905]

約数ペア:

[(1, 209567905), (5, 41913581), (31, 6760255), (131, 1599755), (155, 1352051), (655, 319951), (4061, 51605), (10321, 20305)]