18901340

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{1973}}^1$

素因数の和:2461

約数の個数: 24

約数和(自身を含む): 39795840

約数和(自身を除く): 20894500

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 1973, 2395, 3946, 4790, 7892, 9580, 9865, 19730, 39460, 945067, 1890134, 3780268, 4725335, 9450670, 18901340]

約数ペア:

[(1, 18901340), (2, 9450670), (4, 4725335), (5, 3780268), (10, 1890134), (20, 945067), (479, 39460), (958, 19730), (1916, 9865), (1973, 9580), (2395, 7892), (3946, 4790)]