20941640

素因数分解:

$2^3\times 5^1\times {\mathrm{523541}}^1$

素因数の和:523552

約数の個数: 16

約数和(自身を含む): 47118780

約数和(自身を除く): 26177140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523541, 1047082, 2094164, 2617705, 4188328, 5235410, 10470820, 20941640]

約数ペア:

[(1, 20941640), (2, 10470820), (4, 5235410), (5, 4188328), (8, 2617705), (10, 2094164), (20, 1047082), (40, 523541)]