20203640

素因数分解:

$2^3\times 5^1\times {\mathrm{505091}}^1$

素因数の和:505102

約数の個数: 16

約数和(自身を含む): 45458280

約数和(自身を除く): 25254640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 505091, 1010182, 2020364, 2525455, 4040728, 5050910, 10101820, 20203640]

約数ペア:

[(1, 20203640), (2, 10101820), (4, 5050910), (5, 4040728), (8, 2525455), (10, 2020364), (20, 1010182), (40, 505091)]