20809785584

素因数分解:

$2^4\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1915481}}^1$

素因数の和:1915593

約数の個数: 40

約数和(自身を含む): 46553874528

約数和(自身を除く): 25744088944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 97, 112, 194, 388, 679, 776, 1358, 1552, 2716, 5432, 10864, 1915481, 3830962, 7661924, 13408367, 15323848, 26816734, 30647696, 53633468, 107266936, 185801657, 214533872, 371603314, 743206628, 1300611599, 1486413256, 2601223198, 2972826512, 5202446396, 10404892792, 20809785584]

約数ペア:

[(1, 20809785584), (2, 10404892792), (4, 5202446396), (7, 2972826512), (8, 2601223198), (14, 1486413256), (16, 1300611599), (28, 743206628), (56, 371603314), (97, 214533872), (112, 185801657), (194, 107266936), (388, 53633468), (679, 30647696), (776, 26816734), (1358, 15323848), (1552, 13408367), (2716, 7661924), (5432, 3830962), (10864, 1915481)]