7720856

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1$

素因数の和:444

約数の個数: 64

約数和(自身を含む): 18053280

約数和(自身を除く): 10332424

約数列:

[1, 2, 4, 8, 11, 13, 17, 22, 26, 34, 44, 52, 68, 88, 104, 136, 143, 187, 221, 286, 374, 397, 442, 572, 748, 794, 884, 1144, 1496, 1588, 1768, 2431, 3176, 4367, 4862, 5161, 6749, 8734, 9724, 10322, 13498, 17468, 19448, 20644, 26996, 34936, 41288, 53992, 56771, 74239, 87737, 113542, 148478, 175474, 227084, 296956, 350948, 454168, 593912, 701896, 965107, 1930214, 3860428, 7720856]

約数ペア:

[(1, 7720856), (2, 3860428), (4, 1930214), (8, 965107), (11, 701896), (13, 593912), (17, 454168), (22, 350948), (26, 296956), (34, 227084), (44, 175474), (52, 148478), (68, 113542), (88, 87737), (104, 74239), (136, 56771), (143, 53992), (187, 41288), (221, 34936), (286, 26996), (374, 20644), (397, 19448), (442, 17468), (572, 13498), (748, 10322), (794, 9724), (884, 8734), (1144, 6749), (1496, 5161), (1588, 4862), (1768, 4367), (2431, 3176)]