408907239

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:360

約数の個数: 64

約数和(自身を含む): 649635840

約数和(自身を除く): 240728601

約数列:

[1, 3, 13, 17, 37, 39, 51, 79, 111, 211, 221, 237, 481, 629, 633, 663, 1027, 1343, 1443, 1887, 2743, 2923, 3081, 3587, 4029, 7807, 8177, 8229, 8769, 10761, 16669, 17459, 23421, 24531, 37999, 46631, 49691, 50007, 52377, 101491, 113997, 132719, 139893, 149073, 216697, 283373, 304473, 398157, 616753, 645983, 650091, 850119, 1725347, 1850259, 1937949, 3683849, 5176041, 8017789, 10484801, 11051547, 24053367, 31454403, 136302413, 408907239]

約数ペア:

[(1, 408907239), (3, 136302413), (13, 31454403), (17, 24053367), (37, 11051547), (39, 10484801), (51, 8017789), (79, 5176041), (111, 3683849), (211, 1937949), (221, 1850259), (237, 1725347), (481, 850119), (629, 650091), (633, 645983), (663, 616753), (1027, 398157), (1343, 304473), (1443, 283373), (1887, 216697), (2743, 149073), (2923, 139893), (3081, 132719), (3587, 113997), (4029, 101491), (7807, 52377), (8177, 50007), (8229, 49691), (8769, 46631), (10761, 37999), (16669, 24531), (17459, 23421)]