20342855896

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{488729}}^1$

素因数の和:488800

約数の個数: 48

約数和(自身を含む): 42900719400

約数和(自身を除く): 22557863504

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 121, 172, 242, 344, 473, 484, 946, 968, 1892, 3784, 5203, 10406, 20812, 41624, 488729, 977458, 1954916, 3909832, 5376019, 10752038, 21015347, 21504076, 42030694, 43008152, 59136209, 84061388, 118272418, 168122776, 231168817, 236544836, 462337634, 473089672, 924675268, 1849350536, 2542856987, 5085713974, 10171427948, 20342855896]

約数ペア:

[(1, 20342855896), (2, 10171427948), (4, 5085713974), (8, 2542856987), (11, 1849350536), (22, 924675268), (43, 473089672), (44, 462337634), (86, 236544836), (88, 231168817), (121, 168122776), (172, 118272418), (242, 84061388), (344, 59136209), (473, 43008152), (484, 42030694), (946, 21504076), (968, 21015347), (1892, 10752038), (3784, 5376019), (5203, 3909832), (10406, 1954916), (20812, 977458), (41624, 488729)]