208025285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{1291}}^1$

素因数の和:1413

約数の個数: 32

約数和(自身を含む): 280436352

約数和(自身を除く): 72411067

約数列:

[1, 5, 13, 37, 65, 67, 185, 335, 481, 871, 1291, 2405, 2479, 4355, 6455, 12395, 16783, 32227, 47767, 83915, 86497, 161135, 238835, 432485, 620971, 1124461, 3104855, 3200389, 5622305, 16001945, 41605057, 208025285]

約数ペア:

[(1, 208025285), (5, 41605057), (13, 16001945), (37, 5622305), (65, 3200389), (67, 3104855), (185, 1124461), (335, 620971), (481, 432485), (871, 238835), (1291, 161135), (2405, 86497), (2479, 83915), (4355, 47767), (6455, 32227), (12395, 16783)]