20803123712

素因数分解:

$2^9\times 7^1\times {\mathrm{19}}^1\times {\mathrm{305497}}^1$

素因数の和:305541

約数の個数: 80

約数和(自身を含む): 50003912640

約数和(自身を除く): 29200788928

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 128, 133, 152, 224, 256, 266, 304, 448, 512, 532, 608, 896, 1064, 1216, 1792, 2128, 2432, 3584, 4256, 4864, 8512, 9728, 17024, 34048, 68096, 305497, 610994, 1221988, 2138479, 2443976, 4276958, 4887952, 5804443, 8553916, 9775904, 11608886, 17107832, 19551808, 23217772, 34215664, 39103616, 40631101, 46435544, 68431328, 78207232, 81262202, 92871088, 136862656, 156414464, 162524404, 185742176, 273725312, 325048808, 371484352, 547450624, 650097616, 742968704, 1094901248, 1300195232, 1485937408, 2600390464, 2971874816, 5200780928, 10401561856, 20803123712]

約数ペア:

[(1, 20803123712), (2, 10401561856), (4, 5200780928), (7, 2971874816), (8, 2600390464), (14, 1485937408), (16, 1300195232), (19, 1094901248), (28, 742968704), (32, 650097616), (38, 547450624), (56, 371484352), (64, 325048808), (76, 273725312), (112, 185742176), (128, 162524404), (133, 156414464), (152, 136862656), (224, 92871088), (256, 81262202), (266, 78207232), (304, 68431328), (448, 46435544), (512, 40631101), (532, 39103616), (608, 34215664), (896, 23217772), (1064, 19551808), (1216, 17107832), (1792, 11608886), (2128, 9775904), (2432, 8553916), (3584, 5804443), (4256, 4887952), (4864, 4276958), (8512, 2443976), (9728, 2138479), (17024, 1221988), (34048, 610994), (68096, 305497)]