1663780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2029}}^1$

素因数の和:2079

約数の個数: 24

約数和(自身を含む): 3580920

約数和(自身を除く): 1917140

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 2029, 4058, 8116, 10145, 20290, 40580, 83189, 166378, 332756, 415945, 831890, 1663780]

約数ペア:

[(1, 1663780), (2, 831890), (4, 415945), (5, 332756), (10, 166378), (20, 83189), (41, 40580), (82, 20290), (164, 10145), (205, 8116), (410, 4058), (820, 2029)]