18208522040

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3322723}}^1$

素因数の和:3322871

約数の個数: 32

約数和(自身を含む): 41268232080

約数和(自身を除く): 23059710040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 3322723, 6645446, 13290892, 16613615, 26581784, 33227230, 66454460, 132908920, 455213051, 910426102, 1820852204, 2276065255, 3641704408, 4552130510, 9104261020, 18208522040]

約数ペア:

[(1, 18208522040), (2, 9104261020), (4, 4552130510), (5, 3641704408), (8, 2276065255), (10, 1820852204), (20, 910426102), (40, 455213051), (137, 132908920), (274, 66454460), (548, 33227230), (685, 26581784), (1096, 16613615), (1370, 13290892), (2740, 6645446), (5480, 3322723)]