55857140

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{21991}}^1$

素因数の和:22127

約数の個数: 24

約数和(自身を含む): 118228992

約数和(自身を除く): 62371852

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 21991, 43982, 87964, 109955, 219910, 439820, 2792857, 5585714, 11171428, 13964285, 27928570, 55857140]

約数ペア:

[(1, 55857140), (2, 27928570), (4, 13964285), (5, 11171428), (10, 5585714), (20, 2792857), (127, 439820), (254, 219910), (508, 109955), (635, 87964), (1270, 43982), (2540, 21991)]