25619980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67421}}^1$

素因数の和:67449

約数の個数: 24

約数和(自身を含む): 56634480

約数和(自身を除く): 31014500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 67421, 134842, 269684, 337105, 674210, 1280999, 1348420, 2561998, 5123996, 6404995, 12809990, 25619980]

約数ペア:

[(1, 25619980), (2, 12809990), (4, 6404995), (5, 5123996), (10, 2561998), (19, 1348420), (20, 1280999), (38, 674210), (76, 337105), (95, 269684), (190, 134842), (380, 67421)]