80772560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{349}}^1$

素因数の和:636

約数の個数: 80

約数和(自身を含む): 206236800

約数和(自身を除く): 125464240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 263, 349, 440, 526, 698, 880, 1052, 1315, 1396, 1745, 2104, 2630, 2792, 2893, 3490, 3839, 4208, 5260, 5584, 5786, 6980, 7678, 10520, 11572, 13960, 14465, 15356, 19195, 21040, 23144, 27920, 28930, 30712, 38390, 46288, 57860, 61424, 76780, 91787, 115720, 153560, 183574, 231440, 307120, 367148, 458935, 734296, 917870, 1009657, 1468592, 1835740, 2019314, 3671480, 4038628, 5048285, 7342960, 8077256, 10096570, 16154512, 20193140, 40386280, 80772560]

約数ペア:

[(1, 80772560), (2, 40386280), (4, 20193140), (5, 16154512), (8, 10096570), (10, 8077256), (11, 7342960), (16, 5048285), (20, 4038628), (22, 3671480), (40, 2019314), (44, 1835740), (55, 1468592), (80, 1009657), (88, 917870), (110, 734296), (176, 458935), (220, 367148), (263, 307120), (349, 231440), (440, 183574), (526, 153560), (698, 115720), (880, 91787), (1052, 76780), (1315, 61424), (1396, 57860), (1745, 46288), (2104, 38390), (2630, 30712), (2792, 28930), (2893, 27920), (3490, 23144), (3839, 21040), (4208, 19195), (5260, 15356), (5584, 14465), (5786, 13960), (6980, 11572), (7678, 10520)]