669788

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1259}}^1$

素因数の和:1289

約数の個数: 24

約数和(自身を含む): 1411200

約数和(自身を除く): 741412

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 1259, 2518, 5036, 8813, 17626, 23921, 35252, 47842, 95684, 167447, 334894, 669788]

約数ペア:

[(1, 669788), (2, 334894), (4, 167447), (7, 95684), (14, 47842), (19, 35252), (28, 23921), (38, 17626), (76, 8813), (133, 5036), (266, 2518), (532, 1259)]