208078420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{945811}}^1$

素因数の和:945831

約数の個数: 24

約数和(自身を含む): 476689248

約数和(自身を除く): 268610828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 945811, 1891622, 3783244, 4729055, 9458110, 10403921, 18916220, 20807842, 41615684, 52019605, 104039210, 208078420]

約数ペア:

[(1, 208078420), (2, 104039210), (4, 52019605), (5, 41615684), (10, 20807842), (11, 18916220), (20, 10403921), (22, 9458110), (44, 4729055), (55, 3783244), (110, 1891622), (220, 945811)]