205467717

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{761}}^1$

素因数の和:850

約数の個数: 64

約数和(自身を含む): 360493056

約数和(自身を除く): 155025339

約数列:

[1, 3, 7, 13, 21, 23, 39, 43, 69, 91, 129, 161, 273, 299, 301, 483, 559, 761, 897, 903, 989, 1677, 2093, 2283, 2967, 3913, 5327, 6279, 6923, 9893, 11739, 12857, 15981, 17503, 20769, 29679, 32723, 38571, 52509, 69251, 89999, 98169, 122521, 207753, 227539, 229061, 269997, 367563, 425399, 682617, 687183, 752629, 1276197, 1592773, 2257887, 2977793, 4778319, 5268403, 8933379, 9784177, 15805209, 29352531, 68489239, 205467717]

約数ペア:

[(1, 205467717), (3, 68489239), (7, 29352531), (13, 15805209), (21, 9784177), (23, 8933379), (39, 5268403), (43, 4778319), (69, 2977793), (91, 2257887), (129, 1592773), (161, 1276197), (273, 752629), (299, 687183), (301, 682617), (483, 425399), (559, 367563), (761, 269997), (897, 229061), (903, 227539), (989, 207753), (1677, 122521), (2093, 98169), (2283, 89999), (2967, 69251), (3913, 52509), (5327, 38571), (6279, 32723), (6923, 29679), (9893, 20769), (11739, 17503), (12857, 15981)]