77972920

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{15349}}^1$

素因数の和:15487

約数の個数: 32

約数和(自身を含む): 176832000

約数和(自身を除く): 98859080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 15349, 30698, 61396, 76745, 122792, 153490, 306980, 613960, 1949323, 3898646, 7797292, 9746615, 15594584, 19493230, 38986460, 77972920]

約数ペア:

[(1, 77972920), (2, 38986460), (4, 19493230), (5, 15594584), (8, 9746615), (10, 7797292), (20, 3898646), (40, 1949323), (127, 613960), (254, 306980), (508, 153490), (635, 122792), (1016, 76745), (1270, 61396), (2540, 30698), (5080, 15349)]