1720221279

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{4201}}^1$

素因数の和:4296

約数の個数: 64

約数和(自身を含む): 2943148032

約数和(自身を除く): 1222926753

約数列:

[1, 3, 7, 17, 21, 31, 37, 51, 93, 111, 119, 217, 259, 357, 527, 629, 651, 777, 1147, 1581, 1887, 3441, 3689, 4201, 4403, 8029, 11067, 12603, 13209, 19499, 24087, 29407, 58497, 71417, 88221, 130231, 136493, 155437, 214251, 390693, 409479, 466311, 499919, 911617, 1088059, 1499757, 2213927, 2642429, 2734851, 3264177, 4818547, 6641781, 7927287, 14455641, 15497489, 18497003, 33729829, 46492467, 55491009, 81915299, 101189487, 245745897, 573407093, 1720221279]

約数ペア:

[(1, 1720221279), (3, 573407093), (7, 245745897), (17, 101189487), (21, 81915299), (31, 55491009), (37, 46492467), (51, 33729829), (93, 18497003), (111, 15497489), (119, 14455641), (217, 7927287), (259, 6641781), (357, 4818547), (527, 3264177), (629, 2734851), (651, 2642429), (777, 2213927), (1147, 1499757), (1581, 1088059), (1887, 911617), (3441, 499919), (3689, 466311), (4201, 409479), (4403, 390693), (8029, 214251), (11067, 155437), (12603, 136493), (13209, 130231), (19499, 88221), (24087, 71417), (29407, 58497)]