28909888

素因数分解:

$2^6\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1373}}^1$

素因数の和:1439

約数の個数: 56

約数和(自身を含む): 67007232

約数和(自身を除く): 38097344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 64, 94, 112, 188, 224, 329, 376, 448, 658, 752, 1316, 1373, 1504, 2632, 2746, 3008, 5264, 5492, 9611, 10528, 10984, 19222, 21056, 21968, 38444, 43936, 64531, 76888, 87872, 129062, 153776, 258124, 307552, 451717, 516248, 615104, 903434, 1032496, 1806868, 2064992, 3613736, 4129984, 7227472, 14454944, 28909888]

約数ペア:

[(1, 28909888), (2, 14454944), (4, 7227472), (7, 4129984), (8, 3613736), (14, 2064992), (16, 1806868), (28, 1032496), (32, 903434), (47, 615104), (56, 516248), (64, 451717), (94, 307552), (112, 258124), (188, 153776), (224, 129062), (329, 87872), (376, 76888), (448, 64531), (658, 43936), (752, 38444), (1316, 21968), (1373, 21056), (1504, 19222), (2632, 10984), (2746, 10528), (3008, 9611), (5264, 5492)]