18240656

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:208

約数の個数: 80

約数和(自身を含む): 43163904

約数和(自身を除く): 24923248

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 73, 92, 97, 112, 146, 161, 184, 194, 292, 322, 368, 388, 511, 584, 644, 679, 776, 1022, 1168, 1288, 1358, 1552, 1679, 2044, 2231, 2576, 2716, 3358, 4088, 4462, 5432, 6716, 7081, 8176, 8924, 10864, 11753, 13432, 14162, 15617, 17848, 23506, 26864, 28324, 31234, 35696, 47012, 49567, 56648, 62468, 94024, 99134, 113296, 124936, 162863, 188048, 198268, 249872, 325726, 396536, 651452, 793072, 1140041, 1302904, 2280082, 2605808, 4560164, 9120328, 18240656]

約数ペア:

[(1, 18240656), (2, 9120328), (4, 4560164), (7, 2605808), (8, 2280082), (14, 1302904), (16, 1140041), (23, 793072), (28, 651452), (46, 396536), (56, 325726), (73, 249872), (92, 198268), (97, 188048), (112, 162863), (146, 124936), (161, 113296), (184, 99134), (194, 94024), (292, 62468), (322, 56648), (368, 49567), (388, 47012), (511, 35696), (584, 31234), (644, 28324), (679, 26864), (776, 23506), (1022, 17848), (1168, 15617), (1288, 14162), (1358, 13432), (1552, 11753), (1679, 10864), (2044, 8924), (2231, 8176), (2576, 7081), (2716, 6716), (3358, 5432), (4088, 4462)]