19117640

素因数分解:

$2^3\times 5^1\times {\mathrm{477941}}^1$

素因数の和:477952

約数の個数: 16

約数和(自身を含む): 43014780

約数和(自身を除く): 23897140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 477941, 955882, 1911764, 2389705, 3823528, 4779410, 9558820, 19117640]

約数ペア:

[(1, 19117640), (2, 9558820), (4, 4779410), (5, 3823528), (8, 2389705), (10, 1911764), (20, 955882), (40, 477941)]