256660515

素因数分解:

$3^3\times 5^1\times {\mathrm{863}}^1\times {\mathrm{2203}}^1$

素因数の和:3080

約数の個数: 32

約数和(自身を含む): 457021440

約数和(自身を除く): 200360925

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 863, 2203, 2589, 4315, 6609, 7767, 11015, 12945, 19827, 23301, 33045, 38835, 59481, 99135, 116505, 297405, 1901189, 5703567, 9505945, 17110701, 28517835, 51332103, 85553505, 256660515]

約数ペア:

[(1, 256660515), (3, 85553505), (5, 51332103), (9, 28517835), (15, 17110701), (27, 9505945), (45, 5703567), (135, 1901189), (863, 297405), (2203, 116505), (2589, 99135), (4315, 59481), (6609, 38835), (7767, 33045), (11015, 23301), (12945, 19827)]