1611020

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{739}}^1$

素因数の和:857

約数の個数: 24

約数和(自身を含む): 3418800

約数和(自身を除く): 1807780

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 739, 1090, 1478, 2180, 2956, 3695, 7390, 14780, 80551, 161102, 322204, 402755, 805510, 1611020]

約数ペア:

[(1, 1611020), (2, 805510), (4, 402755), (5, 322204), (10, 161102), (20, 80551), (109, 14780), (218, 7390), (436, 3695), (545, 2956), (739, 2180), (1090, 1478)]