72448340

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^2\times {\mathrm{193}}^1$

素因数の和:476

約数の個数: 36

約数和(自身を含む): 154054236

約数和(自身を除く): 81605896

約数列:

[1, 2, 4, 5, 10, 20, 137, 193, 274, 386, 548, 685, 772, 965, 1370, 1930, 2740, 3860, 18769, 26441, 37538, 52882, 75076, 93845, 105764, 132205, 187690, 264410, 375380, 528820, 3622417, 7244834, 14489668, 18112085, 36224170, 72448340]

約数ペア:

[(1, 72448340), (2, 36224170), (4, 18112085), (5, 14489668), (10, 7244834), (20, 3622417), (137, 528820), (193, 375380), (274, 264410), (386, 187690), (548, 132205), (685, 105764), (772, 93845), (965, 75076), (1370, 52882), (1930, 37538), (2740, 26441), (3860, 18769)]