12521800

素因数分解:

$2^3\times 5^2\times {\mathrm{137}}^1\times {\mathrm{457}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 29389860

約数和(自身を除く): 16868060

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 137, 200, 274, 457, 548, 685, 914, 1096, 1370, 1828, 2285, 2740, 3425, 3656, 4570, 5480, 6850, 9140, 11425, 13700, 18280, 22850, 27400, 45700, 62609, 91400, 125218, 250436, 313045, 500872, 626090, 1252180, 1565225, 2504360, 3130450, 6260900, 12521800]

約数ペア:

[(1, 12521800), (2, 6260900), (4, 3130450), (5, 2504360), (8, 1565225), (10, 1252180), (20, 626090), (25, 500872), (40, 313045), (50, 250436), (100, 125218), (137, 91400), (200, 62609), (274, 45700), (457, 27400), (548, 22850), (685, 18280), (914, 13700), (1096, 11425), (1370, 9140), (1828, 6850), (2285, 5480), (2740, 4570), (3425, 3656)]