20078857791

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{45179}}^1$

素因数の和:45340

約数の個数: 48

約数和(自身を含む): 32139244800

約数和(自身を除く): 12060387009

約数列:

[1, 3, 9, 19, 23, 57, 69, 113, 171, 207, 339, 437, 1017, 1311, 2147, 2599, 3933, 6441, 7797, 19323, 23391, 45179, 49381, 135537, 148143, 406611, 444429, 858401, 1039117, 2575203, 3117351, 5105227, 7725609, 9352053, 15315681, 19743223, 45947043, 59229669, 96999313, 117420221, 177689007, 290997939, 352260663, 872993817, 1056781989, 2230984199, 6692952597, 20078857791]

約数ペア:

[(1, 20078857791), (3, 6692952597), (9, 2230984199), (19, 1056781989), (23, 872993817), (57, 352260663), (69, 290997939), (113, 177689007), (171, 117420221), (207, 96999313), (339, 59229669), (437, 45947043), (1017, 19743223), (1311, 15315681), (2147, 9352053), (2599, 7725609), (3933, 5105227), (6441, 3117351), (7797, 2575203), (19323, 1039117), (23391, 858401), (45179, 444429), (49381, 406611), (135537, 148143)]