20734780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{307}}^2$

素因数の和:634

約数の個数: 36

約数和(自身を含む): 47656728

約数和(自身を除く): 26921948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 307, 614, 1228, 1535, 3070, 3377, 6140, 6754, 13508, 16885, 33770, 67540, 94249, 188498, 376996, 471245, 942490, 1036739, 1884980, 2073478, 4146956, 5183695, 10367390, 20734780]

約数ペア:

[(1, 20734780), (2, 10367390), (4, 5183695), (5, 4146956), (10, 2073478), (11, 1884980), (20, 1036739), (22, 942490), (44, 471245), (55, 376996), (110, 188498), (220, 94249), (307, 67540), (614, 33770), (1228, 16885), (1535, 13508), (3070, 6754), (3377, 6140)]