1806609920

素因数分解:

$2^9\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8933}}^1$

素因数の和:9035

約数の個数: 80

約数和(自身を含む): 4386951360

約数和(自身を除く): 2580341440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 256, 316, 320, 395, 512, 632, 640, 790, 1264, 1280, 1580, 2528, 2560, 3160, 5056, 6320, 8933, 10112, 12640, 17866, 20224, 25280, 35732, 40448, 44665, 50560, 71464, 89330, 101120, 142928, 178660, 202240, 285856, 357320, 571712, 705707, 714640, 1143424, 1411414, 1429280, 2286848, 2822828, 2858560, 3528535, 4573696, 5645656, 5717120, 7057070, 11291312, 11434240, 14114140, 22582624, 22868480, 28228280, 45165248, 56456560, 90330496, 112913120, 180660992, 225826240, 361321984, 451652480, 903304960, 1806609920]

約数ペア:

[(1, 1806609920), (2, 903304960), (4, 451652480), (5, 361321984), (8, 225826240), (10, 180660992), (16, 112913120), (20, 90330496), (32, 56456560), (40, 45165248), (64, 28228280), (79, 22868480), (80, 22582624), (128, 14114140), (158, 11434240), (160, 11291312), (256, 7057070), (316, 5717120), (320, 5645656), (395, 4573696), (512, 3528535), (632, 2858560), (640, 2822828), (790, 2286848), (1264, 1429280), (1280, 1411414), (1580, 1143424), (2528, 714640), (2560, 705707), (3160, 571712), (5056, 357320), (6320, 285856), (8933, 202240), (10112, 178660), (12640, 142928), (17866, 101120), (20224, 89330), (25280, 71464), (35732, 50560), (40448, 44665)]