81779060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{719}}^1$

素因数の和:797

約数の個数: 72

約数和(自身を含む): 193052160

約数和(自身を除く): 111273100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 121, 188, 220, 235, 242, 470, 484, 517, 605, 719, 940, 1034, 1210, 1438, 2068, 2420, 2585, 2876, 3595, 5170, 5687, 7190, 7909, 10340, 11374, 14380, 15818, 22748, 28435, 31636, 33793, 39545, 56870, 67586, 79090, 86999, 113740, 135172, 158180, 168965, 173998, 337930, 347996, 371723, 434995, 675860, 743446, 869990, 1486892, 1739980, 1858615, 3717230, 4088953, 7434460, 8177906, 16355812, 20444765, 40889530, 81779060]

約数ペア:

[(1, 81779060), (2, 40889530), (4, 20444765), (5, 16355812), (10, 8177906), (11, 7434460), (20, 4088953), (22, 3717230), (44, 1858615), (47, 1739980), (55, 1486892), (94, 869990), (110, 743446), (121, 675860), (188, 434995), (220, 371723), (235, 347996), (242, 337930), (470, 173998), (484, 168965), (517, 158180), (605, 135172), (719, 113740), (940, 86999), (1034, 79090), (1210, 67586), (1438, 56870), (2068, 39545), (2420, 33793), (2585, 31636), (2876, 28435), (3595, 22748), (5170, 15818), (5687, 14380), (7190, 11374), (7909, 10340)]