1216282925

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:399

約数の個数: 72

約数和(自身を含む): 1805775048

約数和(自身を除く): 589492123

約数列:

[1, 5, 11, 13, 25, 55, 65, 121, 143, 157, 197, 275, 325, 605, 715, 785, 985, 1573, 1727, 2041, 2167, 2561, 3025, 3575, 3925, 4925, 7865, 8635, 10205, 10835, 12805, 18997, 22451, 23837, 28171, 30929, 39325, 43175, 51025, 54175, 64025, 94985, 112255, 119185, 140855, 154645, 246961, 309881, 340219, 402077, 474925, 561275, 595925, 704275, 773225, 1234805, 1549405, 1701095, 2010385, 3742409, 4422847, 6174025, 7747025, 8505475, 10051925, 18712045, 22114235, 48651317, 93560225, 110571175, 243256585, 1216282925]

約数ペア:

[(1, 1216282925), (5, 243256585), (11, 110571175), (13, 93560225), (25, 48651317), (55, 22114235), (65, 18712045), (121, 10051925), (143, 8505475), (157, 7747025), (197, 6174025), (275, 4422847), (325, 3742409), (605, 2010385), (715, 1701095), (785, 1549405), (985, 1234805), (1573, 773225), (1727, 704275), (2041, 595925), (2167, 561275), (2561, 474925), (3025, 402077), (3575, 340219), (3925, 309881), (4925, 246961), (7865, 154645), (8635, 140855), (10205, 119185), (10835, 112255), (12805, 94985), (18997, 64025), (22451, 54175), (23837, 51025), (28171, 43175), (30929, 39325)]