665225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:121

約数の個数: 24

約数和(自身を含む): 937440

約数和(自身を除く): 272215

約数列:

[1, 5, 11, 25, 41, 55, 59, 205, 275, 295, 451, 649, 1025, 1475, 2255, 2419, 3245, 11275, 12095, 16225, 26609, 60475, 133045, 665225]

約数ペア:

[(1, 665225), (5, 133045), (11, 60475), (25, 26609), (41, 16225), (55, 12095), (59, 11275), (205, 3245), (275, 2419), (295, 2255), (451, 1475), (649, 1025)]