2050805

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:268

約数の個数: 16

約数和(自身を含む): 2585088

約数和(自身を除く): 534283

約数列:

[1, 5, 31, 101, 131, 155, 505, 655, 3131, 4061, 13231, 15655, 20305, 66155, 410161, 2050805]

約数ペア:

[(1, 2050805), (5, 410161), (31, 66155), (101, 20305), (131, 15655), (155, 13231), (505, 4061), (655, 3131)]