19242740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1861}}^1$

素因数の和:1928

約数の個数: 48

約数和(自身を含む): 45045504

約数和(自身を除く): 25802764

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 1034, 1861, 2068, 2585, 3722, 5170, 7444, 9305, 10340, 18610, 20471, 37220, 40942, 81884, 87467, 102355, 174934, 204710, 349868, 409420, 437335, 874670, 962137, 1749340, 1924274, 3848548, 4810685, 9621370, 19242740]

約数ペア:

[(1, 19242740), (2, 9621370), (4, 4810685), (5, 3848548), (10, 1924274), (11, 1749340), (20, 962137), (22, 874670), (44, 437335), (47, 409420), (55, 349868), (94, 204710), (110, 174934), (188, 102355), (220, 87467), (235, 81884), (470, 40942), (517, 37220), (940, 20471), (1034, 18610), (1861, 10340), (2068, 9305), (2585, 7444), (3722, 5170)]