171381520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{823}}^1$

素因数の和:992

約数の個数: 80

約数和(自身を含む): 423008640

約数和(自身を除く): 251627120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 137, 152, 190, 274, 304, 380, 548, 685, 760, 823, 1096, 1370, 1520, 1646, 2192, 2603, 2740, 3292, 4115, 5206, 5480, 6584, 8230, 10412, 10960, 13015, 13168, 15637, 16460, 20824, 26030, 31274, 32920, 41648, 52060, 62548, 65840, 78185, 104120, 112751, 125096, 156370, 208240, 225502, 250192, 312740, 451004, 563755, 625480, 902008, 1127510, 1250960, 1804016, 2142269, 2255020, 4284538, 4510040, 8569076, 9020080, 10711345, 17138152, 21422690, 34276304, 42845380, 85690760, 171381520]

約数ペア:

[(1, 171381520), (2, 85690760), (4, 42845380), (5, 34276304), (8, 21422690), (10, 17138152), (16, 10711345), (19, 9020080), (20, 8569076), (38, 4510040), (40, 4284538), (76, 2255020), (80, 2142269), (95, 1804016), (137, 1250960), (152, 1127510), (190, 902008), (274, 625480), (304, 563755), (380, 451004), (548, 312740), (685, 250192), (760, 225502), (823, 208240), (1096, 156370), (1370, 125096), (1520, 112751), (1646, 104120), (2192, 78185), (2603, 65840), (2740, 62548), (3292, 52060), (4115, 41648), (5206, 32920), (5480, 31274), (6584, 26030), (8230, 20824), (10412, 16460), (10960, 15637), (13015, 13168)]