81559324

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:240

約数の個数: 108

約数和(自身を含む): 193163880

約数和(自身を除く): 111604556

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 49, 76, 77, 98, 121, 133, 154, 181, 196, 209, 242, 266, 308, 362, 418, 484, 532, 539, 724, 836, 847, 931, 1078, 1267, 1463, 1694, 1862, 1991, 2156, 2299, 2534, 2926, 3388, 3439, 3724, 3982, 4598, 5068, 5852, 5929, 6878, 7964, 8869, 9196, 10241, 11858, 13756, 13937, 16093, 17738, 20482, 21901, 23716, 24073, 27874, 32186, 35476, 37829, 40964, 43802, 48146, 55748, 64372, 75658, 87604, 96292, 97559, 112651, 151316, 153307, 168511, 195118, 225302, 264803, 306614, 337022, 390236, 416119, 450604, 529606, 613228, 674044, 832238, 1059212, 1073149, 1664476, 1853621, 2146298, 2912833, 3707242, 4292596, 5825666, 7414484, 11651332, 20389831, 40779662, 81559324]

約数ペア:

[(1, 81559324), (2, 40779662), (4, 20389831), (7, 11651332), (11, 7414484), (14, 5825666), (19, 4292596), (22, 3707242), (28, 2912833), (38, 2146298), (44, 1853621), (49, 1664476), (76, 1073149), (77, 1059212), (98, 832238), (121, 674044), (133, 613228), (154, 529606), (181, 450604), (196, 416119), (209, 390236), (242, 337022), (266, 306614), (308, 264803), (362, 225302), (418, 195118), (484, 168511), (532, 153307), (539, 151316), (724, 112651), (836, 97559), (847, 96292), (931, 87604), (1078, 75658), (1267, 64372), (1463, 55748), (1694, 48146), (1862, 43802), (1991, 40964), (2156, 37829), (2299, 35476), (2534, 32186), (2926, 27874), (3388, 24073), (3439, 23716), (3724, 21901), (3982, 20482), (4598, 17738), (5068, 16093), (5852, 13937), (5929, 13756), (6878, 11858), (7964, 10241), (8869, 9196)]