20080892

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{4339}}^1$

素因数の和:4445

約数の個数: 24

約数和(自身を含む): 38278800

約数和(自身を除く): 18197908

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 1157, 2314, 4339, 4628, 8678, 17356, 56407, 112814, 225628, 386171, 772342, 1544684, 5020223, 10040446, 20080892]

約数ペア:

[(1, 20080892), (2, 10040446), (4, 5020223), (13, 1544684), (26, 772342), (52, 386171), (89, 225628), (178, 112814), (356, 56407), (1157, 17356), (2314, 8678), (4339, 4628)]