81280864

素因数分解:

$2^5\times 7^1\times {\mathrm{109}}^1\times {\mathrm{3329}}^1$

素因数の和:3455

約数の個数: 48

約数和(自身を含む): 184615200

約数和(自身を除く): 103334336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 109, 112, 218, 224, 436, 763, 872, 1526, 1744, 3052, 3329, 3488, 6104, 6658, 12208, 13316, 23303, 24416, 26632, 46606, 53264, 93212, 106528, 186424, 362861, 372848, 725722, 745696, 1451444, 2540027, 2902888, 5080054, 5805776, 10160108, 11611552, 20320216, 40640432, 81280864]

約数ペア:

[(1, 81280864), (2, 40640432), (4, 20320216), (7, 11611552), (8, 10160108), (14, 5805776), (16, 5080054), (28, 2902888), (32, 2540027), (56, 1451444), (109, 745696), (112, 725722), (218, 372848), (224, 362861), (436, 186424), (763, 106528), (872, 93212), (1526, 53264), (1744, 46606), (3052, 26632), (3329, 24416), (3488, 23303), (6104, 13316), (6658, 12208)]