255549749

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:514

約数の個数: 32

約数和(自身を含む): 323635200

約数和(自身を除く): 68085451

約数列:

[1, 7, 13, 49, 91, 223, 257, 343, 637, 1561, 1799, 2899, 3341, 4459, 10927, 12593, 20293, 23387, 57311, 76489, 88151, 142051, 163709, 401177, 745043, 994357, 1145963, 2808239, 5215301, 19657673, 36507107, 255549749]

約数ペア:

[(1, 255549749), (7, 36507107), (13, 19657673), (49, 5215301), (91, 2808239), (223, 1145963), (257, 994357), (343, 745043), (637, 401177), (1561, 163709), (1799, 142051), (2899, 88151), (3341, 76489), (4459, 57311), (10927, 23387), (12593, 20293)]