20492840

素因数分解:

$2^3\times 5^1\times {\mathrm{512321}}^1$

素因数の和:512332

約数の個数: 16

約数和(自身を含む): 46108980

約数和(自身を除く): 25616140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 512321, 1024642, 2049284, 2561605, 4098568, 5123210, 10246420, 20492840]

約数ペア:

[(1, 20492840), (2, 10246420), (4, 5123210), (5, 4098568), (8, 2561605), (10, 2049284), (20, 1024642), (40, 512321)]