834540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1987}}^1$

素因数の和:2006

約数の個数: 48

約数和(自身を含む): 2671872

約数和(自身を除く): 1837332

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 1987, 3974, 5961, 7948, 9935, 11922, 13909, 19870, 23844, 27818, 29805, 39740, 41727, 55636, 59610, 69545, 83454, 119220, 139090, 166908, 208635, 278180, 417270, 834540]

約数ペア:

[(1, 834540), (2, 417270), (3, 278180), (4, 208635), (5, 166908), (6, 139090), (7, 119220), (10, 83454), (12, 69545), (14, 59610), (15, 55636), (20, 41727), (21, 39740), (28, 29805), (30, 27818), (35, 23844), (42, 19870), (60, 13909), (70, 11922), (84, 9935), (105, 7948), (140, 5961), (210, 3974), (420, 1987)]