20418850

素因数分解:

$2^1\times 5^2\times {\mathrm{251}}^1\times {\mathrm{1627}}^1$

素因数の和:1890

約数の個数: 24

約数和(自身を含む): 38153808

約数和(自身を除く): 17734958

約数列:

[1, 2, 5, 10, 25, 50, 251, 502, 1255, 1627, 2510, 3254, 6275, 8135, 12550, 16270, 40675, 81350, 408377, 816754, 2041885, 4083770, 10209425, 20418850]

約数ペア:

[(1, 20418850), (2, 10209425), (5, 4083770), (10, 2041885), (25, 816754), (50, 408377), (251, 81350), (502, 40675), (1255, 16270), (1627, 12550), (2510, 8135), (3254, 6275)]