9001220

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4129}}^1$

素因数の和:4247

約数の個数: 24

約数和(自身を含む): 19080600

約数和(自身を除く): 10079380

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 4129, 8258, 16516, 20645, 41290, 82580, 450061, 900122, 1800244, 2250305, 4500610, 9001220]

約数ペア:

[(1, 9001220), (2, 4500610), (4, 2250305), (5, 1800244), (10, 900122), (20, 450061), (109, 82580), (218, 41290), (436, 20645), (545, 16516), (1090, 8258), (2180, 4129)]