81391376

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{2473}}^1$

素因数の和:2520

約数の個数: 60

約数和(自身を含む): 183605436

約数和(自身を除く): 102214060

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 121, 136, 176, 187, 242, 272, 374, 484, 748, 968, 1496, 1936, 2057, 2473, 2992, 4114, 4946, 8228, 9892, 16456, 19784, 27203, 32912, 39568, 42041, 54406, 84082, 108812, 168164, 217624, 299233, 336328, 435248, 462451, 598466, 672656, 924902, 1196932, 1849804, 2393864, 3699608, 4787728, 5086961, 7399216, 10173922, 20347844, 40695688, 81391376]

約数ペア:

[(1, 81391376), (2, 40695688), (4, 20347844), (8, 10173922), (11, 7399216), (16, 5086961), (17, 4787728), (22, 3699608), (34, 2393864), (44, 1849804), (68, 1196932), (88, 924902), (121, 672656), (136, 598466), (176, 462451), (187, 435248), (242, 336328), (272, 299233), (374, 217624), (484, 168164), (748, 108812), (968, 84082), (1496, 54406), (1936, 42041), (2057, 39568), (2473, 32912), (2992, 27203), (4114, 19784), (4946, 16456), (8228, 9892)]