28295180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{3919}}^1$

素因数の和:3966

約数の個数: 36

約数和(自身を含む): 62727840

約数和(自身を除く): 34432660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 3919, 7220, 7838, 15676, 19595, 39190, 74461, 78380, 148922, 297844, 372305, 744610, 1414759, 1489220, 2829518, 5659036, 7073795, 14147590, 28295180]

約数ペア:

[(1, 28295180), (2, 14147590), (4, 7073795), (5, 5659036), (10, 2829518), (19, 1489220), (20, 1414759), (38, 744610), (76, 372305), (95, 297844), (190, 148922), (361, 78380), (380, 74461), (722, 39190), (1444, 19595), (1805, 15676), (3610, 7838), (3919, 7220)]