261222374

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{947}}^1$

素因数の和:1053

約数の個数: 64

約数和(自身を含む): 507824640

約数和(自身を除く): 246602266

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 61, 119, 122, 133, 238, 266, 323, 427, 646, 854, 947, 1037, 1159, 1894, 2074, 2261, 2318, 4522, 6629, 7259, 8113, 13258, 14518, 16099, 16226, 17993, 19703, 32198, 35986, 39406, 57767, 112693, 115534, 125951, 137921, 225386, 251902, 275842, 305881, 404369, 611762, 808738, 982039, 1097573, 1964078, 2141167, 2195146, 4282334, 6874273, 7683011, 13748546, 15366022, 18658741, 37317482, 130611187, 261222374]

約数ペア:

[(1, 261222374), (2, 130611187), (7, 37317482), (14, 18658741), (17, 15366022), (19, 13748546), (34, 7683011), (38, 6874273), (61, 4282334), (119, 2195146), (122, 2141167), (133, 1964078), (238, 1097573), (266, 982039), (323, 808738), (427, 611762), (646, 404369), (854, 305881), (947, 275842), (1037, 251902), (1159, 225386), (1894, 137921), (2074, 125951), (2261, 115534), (2318, 112693), (4522, 57767), (6629, 39406), (7259, 35986), (8113, 32198), (13258, 19703), (14518, 17993), (16099, 16226)]