31691335

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{383}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 43868160

約数和(自身を除く): 12176825

約数列:

[1, 5, 13, 19, 65, 67, 95, 247, 335, 383, 871, 1235, 1273, 1915, 4355, 4979, 6365, 7277, 16549, 24895, 25661, 36385, 82745, 94601, 128305, 333593, 473005, 487559, 1667965, 2437795, 6338267, 31691335]

約数ペア:

[(1, 31691335), (5, 6338267), (13, 2437795), (19, 1667965), (65, 487559), (67, 473005), (95, 333593), (247, 128305), (335, 94601), (383, 82745), (871, 36385), (1235, 25661), (1273, 24895), (1915, 16549), (4355, 7277), (4979, 6365)]