639551374

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{509}}^1$

素因数の和:769

約数の個数: 64

約数和(自身を含む): 1233792000

約数和(自身を除く): 594240626

約数列:

[1, 2, 7, 11, 14, 22, 41, 77, 82, 154, 199, 287, 398, 451, 509, 574, 902, 1018, 1393, 2189, 2786, 3157, 3563, 4378, 5599, 6314, 7126, 8159, 11198, 15323, 16318, 20869, 30646, 39193, 41738, 57113, 78386, 89749, 101291, 114226, 146083, 179498, 202582, 229559, 292166, 459118, 628243, 709037, 1114201, 1256486, 1418074, 1606913, 2228402, 3213826, 4152931, 7799407, 8305862, 15598814, 29070517, 45682241, 58141034, 91364482, 319775687, 639551374]

約数ペア:

[(1, 639551374), (2, 319775687), (7, 91364482), (11, 58141034), (14, 45682241), (22, 29070517), (41, 15598814), (77, 8305862), (82, 7799407), (154, 4152931), (199, 3213826), (287, 2228402), (398, 1606913), (451, 1418074), (509, 1256486), (574, 1114201), (902, 709037), (1018, 628243), (1393, 459118), (2189, 292166), (2786, 229559), (3157, 202582), (3563, 179498), (4378, 146083), (5599, 114226), (6314, 101291), (7126, 89749), (8159, 78386), (11198, 57113), (15323, 41738), (16318, 39193), (20869, 30646)]