81680456

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71399}}^1$

素因数の和:71429

約数の個数: 32

約数和(自身を含む): 179928000

約数和(自身を除く): 98247544

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 71399, 142798, 285596, 571192, 785389, 928187, 1570778, 1856374, 3141556, 3712748, 6283112, 7425496, 10210057, 20420114, 40840228, 81680456]

約数ペア:

[(1, 81680456), (2, 40840228), (4, 20420114), (8, 10210057), (11, 7425496), (13, 6283112), (22, 3712748), (26, 3141556), (44, 1856374), (52, 1570778), (88, 928187), (104, 785389), (143, 571192), (286, 285596), (572, 142798), (1144, 71399)]