19788740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43019}}^1$

素因数の和:43051

約数の個数: 24

約数和(自身を含む): 43364160

約数和(自身を除く): 23575420

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 43019, 86038, 172076, 215095, 430190, 860380, 989437, 1978874, 3957748, 4947185, 9894370, 19788740]

約数ペア:

[(1, 19788740), (2, 9894370), (4, 4947185), (5, 3957748), (10, 1978874), (20, 989437), (23, 860380), (46, 430190), (92, 215095), (115, 172076), (230, 86038), (460, 43019)]