20409070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:297

約数の個数: 48

約数和(自身を含む): 41023584

約数和(自身を除く): 20614514

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 121, 167, 202, 242, 334, 505, 605, 835, 1010, 1111, 1210, 1670, 1837, 2222, 3674, 5555, 9185, 11110, 12221, 16867, 18370, 20207, 24442, 33734, 40414, 61105, 84335, 101035, 122210, 168670, 185537, 202070, 371074, 927685, 1855370, 2040907, 4081814, 10204535, 20409070]

約数ペア:

[(1, 20409070), (2, 10204535), (5, 4081814), (10, 2040907), (11, 1855370), (22, 927685), (55, 371074), (101, 202070), (110, 185537), (121, 168670), (167, 122210), (202, 101035), (242, 84335), (334, 61105), (505, 40414), (605, 33734), (835, 24442), (1010, 20207), (1111, 18370), (1210, 16867), (1670, 12221), (1837, 11110), (2222, 9185), (3674, 5555)]