81308612

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{233}}^1$

素因数の和:369

約数の個数: 72

約数和(自身を含む): 181254528

約数和(自身を除く): 99945916

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 103, 121, 154, 206, 233, 242, 308, 412, 466, 484, 721, 847, 932, 1133, 1442, 1631, 1694, 2266, 2563, 2884, 3262, 3388, 4532, 5126, 6524, 7931, 10252, 12463, 15862, 17941, 23999, 24926, 28193, 31724, 35882, 47998, 49852, 56386, 71764, 87241, 95996, 112772, 167993, 174482, 197351, 263989, 335986, 348964, 394702, 527978, 671972, 789404, 1055956, 1847923, 2903879, 3695846, 5807758, 7391692, 11615516, 20327153, 40654306, 81308612]

約数ペア:

[(1, 81308612), (2, 40654306), (4, 20327153), (7, 11615516), (11, 7391692), (14, 5807758), (22, 3695846), (28, 2903879), (44, 1847923), (77, 1055956), (103, 789404), (121, 671972), (154, 527978), (206, 394702), (233, 348964), (242, 335986), (308, 263989), (412, 197351), (466, 174482), (484, 167993), (721, 112772), (847, 95996), (932, 87241), (1133, 71764), (1442, 56386), (1631, 49852), (1694, 47998), (2266, 35882), (2563, 31724), (2884, 28193), (3262, 24926), (3388, 23999), (4532, 17941), (5126, 15862), (6524, 12463), (7931, 10252)]