31687216

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:194

約数の個数: 80

約数和(自身を含む): 70709760

約数和(自身を除く): 39022544

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 53, 79, 86, 88, 106, 158, 172, 176, 212, 316, 344, 424, 473, 583, 632, 688, 848, 869, 946, 1166, 1264, 1738, 1892, 2279, 2332, 3397, 3476, 3784, 4187, 4558, 4664, 6794, 6952, 7568, 8374, 9116, 9328, 13588, 13904, 16748, 18232, 25069, 27176, 33496, 36464, 37367, 46057, 50138, 54352, 66992, 74734, 92114, 100276, 149468, 180041, 184228, 200552, 298936, 360082, 368456, 401104, 597872, 720164, 736912, 1440328, 1980451, 2880656, 3960902, 7921804, 15843608, 31687216]

約数ペア:

[(1, 31687216), (2, 15843608), (4, 7921804), (8, 3960902), (11, 2880656), (16, 1980451), (22, 1440328), (43, 736912), (44, 720164), (53, 597872), (79, 401104), (86, 368456), (88, 360082), (106, 298936), (158, 200552), (172, 184228), (176, 180041), (212, 149468), (316, 100276), (344, 92114), (424, 74734), (473, 66992), (583, 54352), (632, 50138), (688, 46057), (848, 37367), (869, 36464), (946, 33496), (1166, 27176), (1264, 25069), (1738, 18232), (1892, 16748), (2279, 13904), (2332, 13588), (3397, 9328), (3476, 9116), (3784, 8374), (4187, 7568), (4558, 6952), (4664, 6794)]