51391865

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{709}}^1$

素因数の和:849

約数の個数: 32

約数和(自身を含む): 74976000

約数和(自身を除く): 23584135

約数列:

[1, 5, 7, 19, 35, 95, 109, 133, 545, 665, 709, 763, 2071, 3545, 3815, 4963, 10355, 13471, 14497, 24815, 67355, 72485, 77281, 94297, 386405, 471485, 540967, 1468339, 2704835, 7341695, 10278373, 51391865]

約数ペア:

[(1, 51391865), (5, 10278373), (7, 7341695), (19, 2704835), (35, 1468339), (95, 540967), (109, 471485), (133, 386405), (545, 94297), (665, 77281), (709, 72485), (763, 67355), (2071, 24815), (3545, 14497), (3815, 13471), (4963, 10355)]