19654420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{42727}}^1$

素因数の和:42759

約数の個数: 24

約数和(自身を含む): 43069824

約数和(自身を除く): 23415404

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 42727, 85454, 170908, 213635, 427270, 854540, 982721, 1965442, 3930884, 4913605, 9827210, 19654420]

約数ペア:

[(1, 19654420), (2, 9827210), (4, 4913605), (5, 3930884), (10, 1965442), (20, 982721), (23, 854540), (46, 427270), (92, 213635), (115, 170908), (230, 85454), (460, 42727)]