2804560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3187}}^1$

素因数の和:3211

約数の個数: 40

約数和(自身を含む): 7115616

約数和(自身を除く): 4311056

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 3187, 6374, 12748, 15935, 25496, 31870, 35057, 50992, 63740, 70114, 127480, 140228, 175285, 254960, 280456, 350570, 560912, 701140, 1402280, 2804560]

約数ペア:

[(1, 2804560), (2, 1402280), (4, 701140), (5, 560912), (8, 350570), (10, 280456), (11, 254960), (16, 175285), (20, 140228), (22, 127480), (40, 70114), (44, 63740), (55, 50992), (80, 35057), (88, 31870), (110, 25496), (176, 15935), (220, 12748), (440, 6374), (880, 3187)]