19008275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{409}}^1$

素因数の和:456

約数の個数: 36

約数和(自身を含む): 27911160

約数和(自身を除く): 8902885

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 169, 275, 325, 409, 715, 845, 1859, 2045, 3575, 4225, 4499, 5317, 9295, 10225, 22495, 26585, 46475, 58487, 69121, 112475, 132925, 292435, 345605, 760331, 1462175, 1728025, 3801655, 19008275]

約数ペア:

[(1, 19008275), (5, 3801655), (11, 1728025), (13, 1462175), (25, 760331), (55, 345605), (65, 292435), (143, 132925), (169, 112475), (275, 69121), (325, 58487), (409, 46475), (715, 26585), (845, 22495), (1859, 10225), (2045, 9295), (3575, 5317), (4225, 4499)]