281249920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{937}}^1$

素因数の和:1030

約数の個数: 128

約数和(自身を含む): 780716160

約数和(自身を除く): 499466240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 67, 70, 80, 112, 128, 134, 140, 160, 224, 268, 280, 320, 335, 448, 469, 536, 560, 640, 670, 896, 937, 938, 1072, 1120, 1340, 1874, 1876, 2144, 2240, 2345, 2680, 3748, 3752, 4288, 4480, 4685, 4690, 5360, 6559, 7496, 7504, 8576, 9370, 9380, 10720, 13118, 14992, 15008, 18740, 18760, 21440, 26236, 29984, 30016, 32795, 37480, 37520, 42880, 52472, 59968, 60032, 62779, 65590, 74960, 75040, 104944, 119936, 125558, 131180, 149920, 150080, 209888, 251116, 262360, 299840, 300160, 313895, 419776, 439453, 502232, 524720, 599680, 627790, 839552, 878906, 1004464, 1049440, 1255580, 1757812, 2008928, 2098880, 2197265, 2511160, 3515624, 4017856, 4197760, 4394530, 5022320, 7031248, 8035712, 8789060, 10044640, 14062496, 17578120, 20089280, 28124992, 35156240, 40178560, 56249984, 70312480, 140624960, 281249920]

約数ペア:

[(1, 281249920), (2, 140624960), (4, 70312480), (5, 56249984), (7, 40178560), (8, 35156240), (10, 28124992), (14, 20089280), (16, 17578120), (20, 14062496), (28, 10044640), (32, 8789060), (35, 8035712), (40, 7031248), (56, 5022320), (64, 4394530), (67, 4197760), (70, 4017856), (80, 3515624), (112, 2511160), (128, 2197265), (134, 2098880), (140, 2008928), (160, 1757812), (224, 1255580), (268, 1049440), (280, 1004464), (320, 878906), (335, 839552), (448, 627790), (469, 599680), (536, 524720), (560, 502232), (640, 439453), (670, 419776), (896, 313895), (937, 300160), (938, 299840), (1072, 262360), (1120, 251116), (1340, 209888), (1874, 150080), (1876, 149920), (2144, 131180), (2240, 125558), (2345, 119936), (2680, 104944), (3748, 75040), (3752, 74960), (4288, 65590), (4480, 62779), (4685, 60032), (4690, 59968), (5360, 52472), (6559, 42880), (7496, 37520), (7504, 37480), (8576, 32795), (9370, 30016), (9380, 29984), (10720, 26236), (13118, 21440), (14992, 18760), (15008, 18740)]