2540225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:209

約数の個数: 24

約数和(自身を含む): 3437280

約数和(自身を除く): 897055

約数列:

[1, 5, 17, 25, 43, 85, 139, 215, 425, 695, 731, 1075, 2363, 3475, 3655, 5977, 11815, 18275, 29885, 59075, 101609, 149425, 508045, 2540225]

約数ペア:

[(1, 2540225), (5, 508045), (17, 149425), (25, 101609), (43, 59075), (85, 29885), (139, 18275), (215, 11815), (425, 5977), (695, 3655), (731, 3475), (1075, 2363)]