20583560

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4721}}^1$

素因数の和:4841

約数の個数: 32

約数和(自身を含む): 46747800

約数和(自身を除く): 26164240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 4721, 9442, 18884, 23605, 37768, 47210, 94420, 188840, 514589, 1029178, 2058356, 2572945, 4116712, 5145890, 10291780, 20583560]

約数ペア:

[(1, 20583560), (2, 10291780), (4, 5145890), (5, 4116712), (8, 2572945), (10, 2058356), (20, 1029178), (40, 514589), (109, 188840), (218, 94420), (436, 47210), (545, 37768), (872, 23605), (1090, 18884), (2180, 9442), (4360, 4721)]