281389080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{334987}}^1$

素因数の和:335008

約数の個数: 64

約数和(自身を含む): 964765440

約数和(自身を除く): 683376360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 334987, 669974, 1004961, 1339948, 1674935, 2009922, 2344909, 2679896, 3349870, 4019844, 4689818, 5024805, 6699740, 7034727, 8039688, 9379636, 10049610, 11724545, 13399480, 14069454, 18759272, 20099220, 23449090, 28138908, 35173635, 40198440, 46898180, 56277816, 70347270, 93796360, 140694540, 281389080]

約数ペア:

[(1, 281389080), (2, 140694540), (3, 93796360), (4, 70347270), (5, 56277816), (6, 46898180), (7, 40198440), (8, 35173635), (10, 28138908), (12, 23449090), (14, 20099220), (15, 18759272), (20, 14069454), (21, 13399480), (24, 11724545), (28, 10049610), (30, 9379636), (35, 8039688), (40, 7034727), (42, 6699740), (56, 5024805), (60, 4689818), (70, 4019844), (84, 3349870), (105, 2679896), (120, 2344909), (140, 2009922), (168, 1674935), (210, 1339948), (280, 1004961), (420, 669974), (840, 334987)]