81339328

素因数分解:

$2^6\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3863}}^1$

素因数の和:3929

約数の個数: 56

約数和(自身を含む): 188439552

約数和(自身を除く): 107100224

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, 1504, 2632, 3008, 3863, 5264, 7726, 10528, 15452, 21056, 27041, 30904, 54082, 61808, 108164, 123616, 181561, 216328, 247232, 363122, 432656, 726244, 865312, 1270927, 1452488, 1730624, 2541854, 2904976, 5083708, 5809952, 10167416, 11619904, 20334832, 40669664, 81339328]

約数ペア:

[(1, 81339328), (2, 40669664), (4, 20334832), (7, 11619904), (8, 10167416), (14, 5809952), (16, 5083708), (28, 2904976), (32, 2541854), (47, 1730624), (56, 1452488), (64, 1270927), (94, 865312), (112, 726244), (188, 432656), (224, 363122), (329, 247232), (376, 216328), (448, 181561), (658, 123616), (752, 108164), (1316, 61808), (1504, 54082), (2632, 30904), (3008, 27041), (3863, 21056), (5264, 15452), (7726, 10528)]