289861208

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{631}}^2$

素因数の和:1288

約数の個数: 48

約数和(自身を含む): 669972240

約数和(自身を除く): 380111032

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 631, 728, 1262, 2524, 4417, 5048, 8203, 8834, 16406, 17668, 32812, 35336, 57421, 65624, 114842, 229684, 398161, 459368, 796322, 1592644, 2787127, 3185288, 5176093, 5574254, 10352186, 11148508, 20704372, 22297016, 36232651, 41408744, 72465302, 144930604, 289861208]

約数ペア:

[(1, 289861208), (2, 144930604), (4, 72465302), (7, 41408744), (8, 36232651), (13, 22297016), (14, 20704372), (26, 11148508), (28, 10352186), (52, 5574254), (56, 5176093), (91, 3185288), (104, 2787127), (182, 1592644), (364, 796322), (631, 459368), (728, 398161), (1262, 229684), (2524, 114842), (4417, 65624), (5048, 57421), (8203, 35336), (8834, 32812), (16406, 17668)]