208545485

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{233}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 269837568

約数和(自身を除く): 61292083

約数列:

[1, 5, 23, 43, 115, 181, 215, 233, 905, 989, 1165, 4163, 4945, 5359, 7783, 10019, 20815, 26795, 38915, 42173, 50095, 179009, 210865, 230437, 895045, 969979, 1152185, 1813439, 4849895, 9067195, 41709097, 208545485]

約数ペア:

[(1, 208545485), (5, 41709097), (23, 9067195), (43, 4849895), (115, 1813439), (181, 1152185), (215, 969979), (233, 895045), (905, 230437), (989, 210865), (1165, 179009), (4163, 50095), (4945, 42173), (5359, 38915), (7783, 26795), (10019, 20815)]