81420794

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{113}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 157199616

約数和(自身を除く): 75778822

約数列:

[1, 2, 7, 13, 14, 26, 37, 74, 91, 107, 113, 182, 214, 226, 259, 481, 518, 749, 791, 962, 1391, 1469, 1498, 1582, 2782, 2938, 3367, 3959, 4181, 6734, 7918, 8362, 9737, 10283, 12091, 19474, 20566, 24182, 27713, 29267, 51467, 54353, 55426, 58534, 84637, 102934, 108706, 157183, 169274, 314366, 360269, 380471, 447367, 720538, 760942, 894734, 1100281, 2200562, 3131569, 5815771, 6263138, 11631542, 40710397, 81420794]

約数ペア:

[(1, 81420794), (2, 40710397), (7, 11631542), (13, 6263138), (14, 5815771), (26, 3131569), (37, 2200562), (74, 1100281), (91, 894734), (107, 760942), (113, 720538), (182, 447367), (214, 380471), (226, 360269), (259, 314366), (481, 169274), (518, 157183), (749, 108706), (791, 102934), (962, 84637), (1391, 58534), (1469, 55426), (1498, 54353), (1582, 51467), (2782, 29267), (2938, 27713), (3367, 24182), (3959, 20566), (4181, 19474), (6734, 12091), (7918, 10283), (8362, 9737)]