257209316

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{16433}}^1$

素因数の和:16500

約数の個数: 48

約数和(自身を含む): 566907264

約数和(自身を除く): 309697948

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 52, 86, 91, 172, 182, 301, 364, 559, 602, 1118, 1204, 2236, 3913, 7826, 15652, 16433, 32866, 65732, 115031, 213629, 230062, 427258, 460124, 706619, 854516, 1413238, 1495403, 2826476, 2990806, 4946333, 5981612, 9186047, 9892666, 18372094, 19785332, 36744188, 64302329, 128604658, 257209316]

約数ペア:

[(1, 257209316), (2, 128604658), (4, 64302329), (7, 36744188), (13, 19785332), (14, 18372094), (26, 9892666), (28, 9186047), (43, 5981612), (52, 4946333), (86, 2990806), (91, 2826476), (172, 1495403), (182, 1413238), (301, 854516), (364, 706619), (559, 460124), (602, 427258), (1118, 230062), (1204, 213629), (2236, 115031), (3913, 65732), (7826, 32866), (15652, 16433)]