18645700

素因数分解:

$2^2\times 5^2\times {\mathrm{137}}^1\times {\mathrm{1361}}^1$

素因数の和:1512

約数の個数: 36

約数和(自身を含む): 40786452

約数和(自身を除く): 22140752

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 137, 274, 548, 685, 1361, 1370, 2722, 2740, 3425, 5444, 6805, 6850, 13610, 13700, 27220, 34025, 68050, 136100, 186457, 372914, 745828, 932285, 1864570, 3729140, 4661425, 9322850, 18645700]

約数ペア:

[(1, 18645700), (2, 9322850), (4, 4661425), (5, 3729140), (10, 1864570), (20, 932285), (25, 745828), (50, 372914), (100, 186457), (137, 136100), (274, 68050), (548, 34025), (685, 27220), (1361, 13700), (1370, 13610), (2722, 6850), (2740, 6805), (3425, 5444)]