128851205

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 194365440

約数和(自身を除く): 65514235

約数列:

[1, 5, 7, 29, 35, 37, 47, 73, 145, 185, 203, 235, 259, 329, 365, 511, 1015, 1073, 1295, 1363, 1645, 1739, 2117, 2555, 2701, 3431, 5365, 6815, 7511, 8695, 9541, 10585, 12173, 13505, 14819, 17155, 18907, 24017, 37555, 47705, 50431, 60865, 74095, 78329, 94535, 99499, 120085, 126947, 252155, 353017, 391645, 497495, 548303, 634735, 696493, 888629, 1765085, 2741515, 3482465, 3681463, 4443145, 18407315, 25770241, 128851205]

約数ペア:

[(1, 128851205), (5, 25770241), (7, 18407315), (29, 4443145), (35, 3681463), (37, 3482465), (47, 2741515), (73, 1765085), (145, 888629), (185, 696493), (203, 634735), (235, 548303), (259, 497495), (329, 391645), (365, 353017), (511, 252155), (1015, 126947), (1073, 120085), (1295, 99499), (1363, 94535), (1645, 78329), (1739, 74095), (2117, 60865), (2555, 50431), (2701, 47705), (3431, 37555), (5365, 24017), (6815, 18907), (7511, 17155), (8695, 14819), (9541, 13505), (10585, 12173)]