20078540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43649}}^1$

素因数の和:43681

約数の個数: 24

約数和(自身を含む): 43999200

約数和(自身を除く): 23920660

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 43649, 87298, 174596, 218245, 436490, 872980, 1003927, 2007854, 4015708, 5019635, 10039270, 20078540]

約数ペア:

[(1, 20078540), (2, 10039270), (4, 5019635), (5, 4015708), (10, 2007854), (20, 1003927), (23, 872980), (46, 436490), (92, 218245), (115, 174596), (230, 87298), (460, 43649)]