639331310

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1\times {\mathrm{3923}}^1$

素因数の和:4352

約数の個数: 32

約数和(自身を含む): 1180967040

約数和(自身を除く): 541635730

約数列:

[1, 2, 5, 10, 43, 86, 215, 379, 430, 758, 1895, 3790, 3923, 7846, 16297, 19615, 32594, 39230, 81485, 162970, 168689, 337378, 843445, 1486817, 1686890, 2973634, 7434085, 14868170, 63933131, 127866262, 319665655, 639331310]

約数ペア:

[(1, 639331310), (2, 319665655), (5, 127866262), (10, 63933131), (43, 14868170), (86, 7434085), (215, 2973634), (379, 1686890), (430, 1486817), (758, 843445), (1895, 337378), (3790, 168689), (3923, 162970), (7846, 81485), (16297, 39230), (19615, 32594)]