2005697785

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{18919}}^1$

素因数の和:19177

約数の個数: 32

約数和(自身を含む): 2975132160

約数和(自身を除く): 969434375

約数列:

[1, 5, 7, 13, 35, 65, 91, 233, 455, 1165, 1631, 3029, 8155, 15145, 18919, 21203, 94595, 106015, 132433, 245947, 662165, 1229735, 1721629, 4408127, 8608145, 22040635, 30856889, 57305651, 154284445, 286528255, 401139557, 2005697785]

約数ペア:

[(1, 2005697785), (5, 401139557), (7, 286528255), (13, 154284445), (35, 57305651), (65, 30856889), (91, 22040635), (233, 8608145), (455, 4408127), (1165, 1721629), (1631, 1229735), (3029, 662165), (8155, 245947), (15145, 132433), (18919, 106015), (21203, 94595)]