2108425

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:90

約数の個数: 36

約数和(自身を含む): 3116988

約数和(自身を除く): 1008563

約数列:

[1, 5, 11, 17, 25, 41, 55, 85, 121, 187, 205, 275, 425, 451, 605, 697, 935, 1025, 2057, 2255, 3025, 3485, 4675, 4961, 7667, 10285, 11275, 17425, 24805, 38335, 51425, 84337, 124025, 191675, 421685, 2108425]

約数ペア:

[(1, 2108425), (5, 421685), (11, 191675), (17, 124025), (25, 84337), (41, 51425), (55, 38335), (85, 24805), (121, 17425), (187, 11275), (205, 10285), (275, 7667), (425, 4961), (451, 4675), (605, 3485), (697, 3025), (935, 2255), (1025, 2057)]