28757008

素因数分解:

$2^4\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2647}}^1$

素因数の和:2759

約数の個数: 40

約数和(自身を含む): 64356992

約数和(自身を除く): 35599984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 97, 112, 194, 388, 679, 776, 1358, 1552, 2647, 2716, 5294, 5432, 10588, 10864, 18529, 21176, 37058, 42352, 74116, 148232, 256759, 296464, 513518, 1027036, 1797313, 2054072, 3594626, 4108144, 7189252, 14378504, 28757008]

約数ペア:

[(1, 28757008), (2, 14378504), (4, 7189252), (7, 4108144), (8, 3594626), (14, 2054072), (16, 1797313), (28, 1027036), (56, 513518), (97, 296464), (112, 256759), (194, 148232), (388, 74116), (679, 42352), (776, 37058), (1358, 21176), (1552, 18529), (2647, 10864), (2716, 10588), (5294, 5432)]