20620028

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:147

約数の個数: 72

約数和(自身を含む): 44271360

約数和(自身を除く): 23651332

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 47, 52, 59, 94, 118, 143, 169, 188, 236, 286, 338, 517, 572, 611, 649, 676, 767, 1034, 1222, 1298, 1534, 1859, 2068, 2444, 2596, 2773, 3068, 3718, 5546, 6721, 7436, 7943, 8437, 9971, 11092, 13442, 15886, 16874, 19942, 26884, 30503, 31772, 33748, 36049, 39884, 61006, 72098, 87373, 109681, 122012, 144196, 174746, 219362, 349492, 396539, 438724, 468637, 793078, 937274, 1586156, 1874548, 5155007, 10310014, 20620028]

約数ペア:

[(1, 20620028), (2, 10310014), (4, 5155007), (11, 1874548), (13, 1586156), (22, 937274), (26, 793078), (44, 468637), (47, 438724), (52, 396539), (59, 349492), (94, 219362), (118, 174746), (143, 144196), (169, 122012), (188, 109681), (236, 87373), (286, 72098), (338, 61006), (517, 39884), (572, 36049), (611, 33748), (649, 31772), (676, 30503), (767, 26884), (1034, 19942), (1222, 16874), (1298, 15886), (1534, 13442), (1859, 11092), (2068, 9971), (2444, 8437), (2596, 7943), (2773, 7436), (3068, 6721), (3718, 5546)]