128305480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{2137}}^1$

素因数の和:2246

約数の個数: 64

約数和(自身を含む): 307872000

約数和(自身を除く): 179566520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 79, 95, 152, 158, 190, 316, 380, 395, 632, 760, 790, 1501, 1580, 2137, 3002, 3160, 4274, 6004, 7505, 8548, 10685, 12008, 15010, 17096, 21370, 30020, 40603, 42740, 60040, 81206, 85480, 162412, 168823, 203015, 324824, 337646, 406030, 675292, 812060, 844115, 1350584, 1624120, 1688230, 3207637, 3376460, 6415274, 6752920, 12830548, 16038185, 25661096, 32076370, 64152740, 128305480]

約数ペア:

[(1, 128305480), (2, 64152740), (4, 32076370), (5, 25661096), (8, 16038185), (10, 12830548), (19, 6752920), (20, 6415274), (38, 3376460), (40, 3207637), (76, 1688230), (79, 1624120), (95, 1350584), (152, 844115), (158, 812060), (190, 675292), (316, 406030), (380, 337646), (395, 324824), (632, 203015), (760, 168823), (790, 162412), (1501, 85480), (1580, 81206), (2137, 60040), (3002, 42740), (3160, 40603), (4274, 30020), (6004, 21370), (7505, 17096), (8548, 15010), (10685, 12008)]