256264239

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{65257}}^1$

素因数の和:65295

約数の個数: 32

約数和(自身を含む): 451063296

約数和(自身を除く): 194799057

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927, 65257, 195771, 456799, 717827, 1109369, 1370397, 2153481, 3328107, 5024789, 7765583, 12203059, 15074367, 23296749, 36609177, 85421413, 256264239]

約数ペア:

[(1, 256264239), (3, 85421413), (7, 36609177), (11, 23296749), (17, 15074367), (21, 12203059), (33, 7765583), (51, 5024789), (77, 3328107), (119, 2153481), (187, 1370397), (231, 1109369), (357, 717827), (561, 456799), (1309, 195771), (3927, 65257)]