18507640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20117}}^1$

素因数の和:20151

約数の個数: 32

約数和(自身を含む): 43454880

約数和(自身を除く): 24947240

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 20117, 40234, 80468, 100585, 160936, 201170, 402340, 462691, 804680, 925382, 1850764, 2313455, 3701528, 4626910, 9253820, 18507640]

約数ペア:

[(1, 18507640), (2, 9253820), (4, 4626910), (5, 3701528), (8, 2313455), (10, 1850764), (20, 925382), (23, 804680), (40, 462691), (46, 402340), (92, 201170), (115, 160936), (184, 100585), (230, 80468), (460, 40234), (920, 20117)]