128404945

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{739}}^1$

素因数の和:853

約数の個数: 32

約数和(自身を含む): 170496000

約数和(自身を除く): 42091055

約数列:

[1, 5, 19, 31, 59, 95, 155, 295, 589, 739, 1121, 1829, 2945, 3695, 5605, 9145, 14041, 22909, 34751, 43601, 70205, 114545, 173755, 218005, 435271, 828419, 1351631, 2176355, 4142095, 6758155, 25680989, 128404945]

約数ペア:

[(1, 128404945), (5, 25680989), (19, 6758155), (31, 4142095), (59, 2176355), (95, 1351631), (155, 828419), (295, 435271), (589, 218005), (739, 173755), (1121, 114545), (1829, 70205), (2945, 43601), (3695, 34751), (5605, 22909), (9145, 14041)]