18901660

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{4127}}^1$

素因数の和:4365

約数の個数: 24

約数和(自身を含む): 39876480

約数和(自身を除く): 20974820

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4127, 4580, 8254, 16508, 20635, 41270, 82540, 945083, 1890166, 3780332, 4725415, 9450830, 18901660]

約数ペア:

[(1, 18901660), (2, 9450830), (4, 4725415), (5, 3780332), (10, 1890166), (20, 945083), (229, 82540), (458, 41270), (916, 20635), (1145, 16508), (2290, 8254), (4127, 4580)]