42128925

素因数分解:

$3^1\times 5^2\times {\mathrm{281}}^1\times {\mathrm{1999}}^1$

素因数の和:2293

約数の個数: 24

約数和(自身を含む): 69936000

約数和(自身を除く): 27807075

約数列:

[1, 3, 5, 15, 25, 75, 281, 843, 1405, 1999, 4215, 5997, 7025, 9995, 21075, 29985, 49975, 149925, 561719, 1685157, 2808595, 8425785, 14042975, 42128925]

約数ペア:

[(1, 42128925), (3, 14042975), (5, 8425785), (15, 2808595), (25, 1685157), (75, 561719), (281, 149925), (843, 49975), (1405, 29985), (1999, 21075), (4215, 9995), (5997, 7025)]