8175820

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{971}}^1$

素因数の和:1401

約数の個数: 24

約数和(自身を含む): 17227728

約数和(自身を除く): 9051908

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 971, 1684, 1942, 2105, 3884, 4210, 4855, 8420, 9710, 19420, 408791, 817582, 1635164, 2043955, 4087910, 8175820]

約数ペア:

[(1, 8175820), (2, 4087910), (4, 2043955), (5, 1635164), (10, 817582), (20, 408791), (421, 19420), (842, 9710), (971, 8420), (1684, 4855), (1942, 4210), (2105, 3884)]