489242020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1287479}}^1$

素因数の和:1287507

約数の個数: 24

約数和(自身を含む): 1081483200

約数和(自身を除く): 592241180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1287479, 2574958, 5149916, 6437395, 12874790, 24462101, 25749580, 48924202, 97848404, 122310505, 244621010, 489242020]

約数ペア:

[(1, 489242020), (2, 244621010), (4, 122310505), (5, 97848404), (10, 48924202), (19, 25749580), (20, 24462101), (38, 12874790), (76, 6437395), (95, 5149916), (190, 2574958), (380, 1287479)]