81589185

素因数分解:

$3^2\times 5^1\times {\mathrm{907}}^1\times {\mathrm{1999}}^1$

素因数の和:2917

約数の個数: 24

約数和(自身を含む): 141648000

約数和(自身を除く): 60058815

約数列:

[1, 3, 5, 9, 15, 45, 907, 1999, 2721, 4535, 5997, 8163, 9995, 13605, 17991, 29985, 40815, 89955, 1813093, 5439279, 9065465, 16317837, 27196395, 81589185]

約数ペア:

[(1, 81589185), (3, 27196395), (5, 16317837), (9, 9065465), (15, 5439279), (45, 1813093), (907, 89955), (1999, 40815), (2721, 29985), (4535, 17991), (5997, 13605), (8163, 9995)]