28871355

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 52876800

約数和(自身を除く): 24005445

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 59, 85, 95, 101, 177, 255, 285, 295, 303, 323, 505, 885, 969, 1003, 1121, 1515, 1615, 1717, 1919, 3009, 3363, 4845, 5015, 5151, 5605, 5757, 5959, 8585, 9595, 15045, 16815, 17877, 19057, 25755, 28785, 29795, 32623, 57171, 89385, 95285, 97869, 101303, 113221, 163115, 285855, 303909, 339663, 489345, 506515, 566105, 1519545, 1698315, 1924757, 5774271, 9623785, 28871355]

約数ペア:

[(1, 28871355), (3, 9623785), (5, 5774271), (15, 1924757), (17, 1698315), (19, 1519545), (51, 566105), (57, 506515), (59, 489345), (85, 339663), (95, 303909), (101, 285855), (177, 163115), (255, 113221), (285, 101303), (295, 97869), (303, 95285), (323, 89385), (505, 57171), (885, 32623), (969, 29795), (1003, 28785), (1121, 25755), (1515, 19057), (1615, 17877), (1717, 16815), (1919, 15045), (3009, 9595), (3363, 8585), (4845, 5959), (5015, 5757), (5151, 5605)]