520956215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1\times {\mathrm{317}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 684040896

約数和(自身を除く): 163084681

約数列:

[1, 5, 13, 65, 131, 193, 317, 655, 965, 1585, 1703, 2509, 4121, 8515, 12545, 20605, 25283, 41527, 61181, 126415, 207635, 305905, 328679, 539851, 795353, 1643395, 2699255, 3976765, 8014711, 40073555, 104191243, 520956215]

約数ペア:

[(1, 520956215), (5, 104191243), (13, 40073555), (65, 8014711), (131, 3976765), (193, 2699255), (317, 1643395), (655, 795353), (965, 539851), (1585, 328679), (1703, 305905), (2509, 207635), (4121, 126415), (8515, 61181), (12545, 41527), (20605, 25283)]