16581080

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3803}}^1$

素因数の和:3923

約数の個数: 32

約数和(自身を含む): 37659600

約数和(自身を除く): 21078520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 3803, 4360, 7606, 15212, 19015, 30424, 38030, 76060, 152120, 414527, 829054, 1658108, 2072635, 3316216, 4145270, 8290540, 16581080]

約数ペア:

[(1, 16581080), (2, 8290540), (4, 4145270), (5, 3316216), (8, 2072635), (10, 1658108), (20, 829054), (40, 414527), (109, 152120), (218, 76060), (436, 38030), (545, 30424), (872, 19015), (1090, 15212), (2180, 7606), (3803, 4360)]