20180685745

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1031}}^1\times {\mathrm{18731}}^1$

素因数の和:19797

約数の個数: 32

約数和(自身を含む): 27837250560

約数和(自身を除く): 7656564815

約数列:

[1, 5, 11, 19, 55, 95, 209, 1031, 1045, 5155, 11341, 18731, 19589, 56705, 93655, 97945, 206041, 215479, 355889, 1030205, 1077395, 1779445, 3914779, 19311661, 19573895, 96558305, 212428271, 366921559, 1062141355, 1834607795, 4036137149, 20180685745]

約数ペア:

[(1, 20180685745), (5, 4036137149), (11, 1834607795), (19, 1062141355), (55, 366921559), (95, 212428271), (209, 96558305), (1031, 19573895), (1045, 19311661), (5155, 3914779), (11341, 1779445), (18731, 1077395), (19589, 1030205), (56705, 355889), (93655, 215479), (97945, 206041)]