20319835

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{1999}}^1$

素因数の和:2130

約数の個数: 16

約数和(自身を含む): 25920000

約数和(自身を除く): 5600165

約数列:

[1, 5, 19, 95, 107, 535, 1999, 2033, 9995, 10165, 37981, 189905, 213893, 1069465, 4063967, 20319835]

約数ペア:

[(1, 20319835), (5, 4063967), (19, 1069465), (95, 213893), (107, 189905), (535, 37981), (1999, 10165), (2033, 9995)]