20806896

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:430

約数の個数: 80

約数和(自身を含む): 59246208

約数和(自身を除く): 38439312

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 157, 176, 251, 264, 314, 471, 502, 528, 628, 753, 942, 1004, 1256, 1506, 1727, 1884, 2008, 2512, 2761, 3012, 3454, 3768, 4016, 5181, 5522, 6024, 6908, 7536, 8283, 10362, 11044, 12048, 13816, 16566, 20724, 22088, 27632, 33132, 39407, 41448, 44176, 66264, 78814, 82896, 118221, 132528, 157628, 236442, 315256, 433477, 472884, 630512, 866954, 945768, 1300431, 1733908, 1891536, 2600862, 3467816, 5201724, 6935632, 10403448, 20806896]

約数ペア:

[(1, 20806896), (2, 10403448), (3, 6935632), (4, 5201724), (6, 3467816), (8, 2600862), (11, 1891536), (12, 1733908), (16, 1300431), (22, 945768), (24, 866954), (33, 630512), (44, 472884), (48, 433477), (66, 315256), (88, 236442), (132, 157628), (157, 132528), (176, 118221), (251, 82896), (264, 78814), (314, 66264), (471, 44176), (502, 41448), (528, 39407), (628, 33132), (753, 27632), (942, 22088), (1004, 20724), (1256, 16566), (1506, 13816), (1727, 12048), (1884, 11044), (2008, 10362), (2512, 8283), (2761, 7536), (3012, 6908), (3454, 6024), (3768, 5522), (4016, 5181)]