255996858

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{829}}^1$

素因数の和:991

約数の個数: 64

約数和(自身を含む): 572261760

約数和(自身を除く): 316264902

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 107, 111, 214, 222, 321, 481, 642, 829, 962, 1391, 1443, 1658, 2487, 2782, 2886, 3959, 4173, 4974, 7918, 8346, 10777, 11877, 21554, 23754, 30673, 32331, 51467, 61346, 64662, 88703, 92019, 102934, 154401, 177406, 184038, 266109, 308802, 398749, 532218, 797498, 1153139, 1196247, 2306278, 2392494, 3282011, 3459417, 6564022, 6918834, 9846033, 19692066, 42666143, 85332286, 127998429, 255996858]

約数ペア:

[(1, 255996858), (2, 127998429), (3, 85332286), (6, 42666143), (13, 19692066), (26, 9846033), (37, 6918834), (39, 6564022), (74, 3459417), (78, 3282011), (107, 2392494), (111, 2306278), (214, 1196247), (222, 1153139), (321, 797498), (481, 532218), (642, 398749), (829, 308802), (962, 266109), (1391, 184038), (1443, 177406), (1658, 154401), (2487, 102934), (2782, 92019), (2886, 88703), (3959, 64662), (4173, 61346), (4974, 51467), (7918, 32331), (8346, 30673), (10777, 23754), (11877, 21554)]