20372385

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:174

約数の個数: 64

約数和(自身を含む): 37822464

約数和(自身を除く): 17450079

約数列:

[1, 3, 5, 11, 15, 33, 37, 47, 55, 71, 111, 141, 165, 185, 213, 235, 355, 407, 517, 555, 705, 781, 1065, 1221, 1551, 1739, 2035, 2343, 2585, 2627, 3337, 3905, 5217, 6105, 7755, 7881, 8695, 10011, 11715, 13135, 16685, 19129, 26085, 28897, 36707, 39405, 50055, 57387, 86691, 95645, 110121, 123469, 144485, 183535, 286935, 370407, 433455, 550605, 617345, 1358159, 1852035, 4074477, 6790795, 20372385]

約数ペア:

[(1, 20372385), (3, 6790795), (5, 4074477), (11, 1852035), (15, 1358159), (33, 617345), (37, 550605), (47, 433455), (55, 370407), (71, 286935), (111, 183535), (141, 144485), (165, 123469), (185, 110121), (213, 95645), (235, 86691), (355, 57387), (407, 50055), (517, 39405), (555, 36707), (705, 28897), (781, 26085), (1065, 19129), (1221, 16685), (1551, 13135), (1739, 11715), (2035, 10011), (2343, 8695), (2585, 7881), (2627, 7755), (3337, 6105), (3905, 5217)]