20189803580

素因数分解:

$2^2\times 5^1\times {\mathrm{1009490179}}^1$

素因数の和:1009490188

約数の個数: 12

約数和(自身を含む): 42398587560

約数和(自身を除く): 22208783980

約数列:

[1, 2, 4, 5, 10, 20, 1009490179, 2018980358, 4037960716, 5047450895, 10094901790, 20189803580]

約数ペア:

[(1, 20189803580), (2, 10094901790), (4, 5047450895), (5, 4037960716), (10, 2018980358), (20, 1009490179)]