2180804560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2478187}}^1$

素因数の和:2478211

約数の個数: 40

約数和(自身を含む): 5531315616

約数和(自身を除く): 3350511056

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 2478187, 4956374, 9912748, 12390935, 19825496, 24781870, 27260057, 39650992, 49563740, 54520114, 99127480, 109040228, 136300285, 198254960, 218080456, 272600570, 436160912, 545201140, 1090402280, 2180804560]

約数ペア:

[(1, 2180804560), (2, 1090402280), (4, 545201140), (5, 436160912), (8, 272600570), (10, 218080456), (11, 198254960), (16, 136300285), (20, 109040228), (22, 99127480), (40, 54520114), (44, 49563740), (55, 39650992), (80, 27260057), (88, 24781870), (110, 19825496), (176, 12390935), (220, 9912748), (440, 4956374), (880, 2478187)]