220389280

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{12637}}^1$

素因数の和:12761

約数の個数: 48

約数和(自身を含む): 525488040

約数和(自身を除く): 305098760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1744, 2180, 3488, 4360, 8720, 12637, 17440, 25274, 50548, 63185, 101096, 126370, 202192, 252740, 404384, 505480, 1010960, 1377433, 2021920, 2754866, 5509732, 6887165, 11019464, 13774330, 22038928, 27548660, 44077856, 55097320, 110194640, 220389280]

約数ペア:

[(1, 220389280), (2, 110194640), (4, 55097320), (5, 44077856), (8, 27548660), (10, 22038928), (16, 13774330), (20, 11019464), (32, 6887165), (40, 5509732), (80, 2754866), (109, 2021920), (160, 1377433), (218, 1010960), (436, 505480), (545, 404384), (872, 252740), (1090, 202192), (1744, 126370), (2180, 101096), (3488, 63185), (4360, 50548), (8720, 25274), (12637, 17440)]