20346320

素因数分解:

$2^4\times 5^1\times {\mathrm{254329}}^1$

素因数の和:254342

約数の個数: 20

約数和(自身を含む): 47305380

約数和(自身を除く): 26959060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 254329, 508658, 1017316, 1271645, 2034632, 2543290, 4069264, 5086580, 10173160, 20346320]

約数ペア:

[(1, 20346320), (2, 10173160), (4, 5086580), (5, 4069264), (8, 2543290), (10, 2034632), (16, 1271645), (20, 1017316), (40, 508658), (80, 254329)]