28905457

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 8419343

約数列:

[1, 7, 17, 23, 59, 119, 161, 179, 391, 413, 1003, 1253, 1357, 2737, 3043, 4117, 7021, 9499, 10561, 21301, 23069, 28819, 69989, 73927, 161483, 179537, 242903, 489923, 1256759, 1700321, 4129351, 28905457]

約数ペア:

[(1, 28905457), (7, 4129351), (17, 1700321), (23, 1256759), (59, 489923), (119, 242903), (161, 179537), (179, 161483), (391, 73927), (413, 69989), (1003, 28819), (1253, 23069), (1357, 21301), (2737, 10561), (3043, 9499), (4117, 7021)]