256533478

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{271}}^1\times {\mathrm{859}}^1$

素因数の和:1180

約数の個数: 32

約数和(自身を含む): 421056000

約数和(自身を除く): 164522522

約数列:

[1, 2, 19, 29, 38, 58, 271, 542, 551, 859, 1102, 1718, 5149, 7859, 10298, 15718, 16321, 24911, 32642, 49822, 149321, 232789, 298642, 465578, 473309, 946618, 4422991, 6750881, 8845982, 13501762, 128266739, 256533478]

約数ペア:

[(1, 256533478), (2, 128266739), (19, 13501762), (29, 8845982), (38, 6750881), (58, 4422991), (271, 946618), (542, 473309), (551, 465578), (859, 298642), (1102, 232789), (1718, 149321), (5149, 49822), (7859, 32642), (10298, 24911), (15718, 16321)]