25191680

素因数分解:

$2^8\times 5^1\times {\mathrm{19681}}^1$

素因数の和:19702

約数の個数: 36

約数和(自身を含む): 60345012

約数和(自身を除く): 35153332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 19681, 39362, 78724, 98405, 157448, 196810, 314896, 393620, 629792, 787240, 1259584, 1574480, 2519168, 3148960, 5038336, 6297920, 12595840, 25191680]

約数ペア:

[(1, 25191680), (2, 12595840), (4, 6297920), (5, 5038336), (8, 3148960), (10, 2519168), (16, 1574480), (20, 1259584), (32, 787240), (40, 629792), (64, 393620), (80, 314896), (128, 196810), (160, 157448), (256, 98405), (320, 78724), (640, 39362), (1280, 19681)]