19519075

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 25154640

約数和(自身を除く): 5635565

約数列:

[1, 5, 25, 41, 137, 139, 205, 685, 695, 1025, 3425, 3475, 5617, 5699, 19043, 28085, 28495, 95215, 140425, 142475, 476075, 780763, 3903815, 19519075]

約数ペア:

[(1, 19519075), (5, 3903815), (25, 780763), (41, 476075), (137, 142475), (139, 140425), (205, 95215), (685, 28495), (695, 28085), (1025, 19043), (3425, 5699), (3475, 5617)]