18801220

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{17737}}^1$

素因数の和:17799

約数の個数: 24

約数和(自身を含む): 40229784

約数和(自身を除く): 21428564

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 17737, 35474, 70948, 88685, 177370, 354740, 940061, 1880122, 3760244, 4700305, 9400610, 18801220]

約数ペア:

[(1, 18801220), (2, 9400610), (4, 4700305), (5, 3760244), (10, 1880122), (20, 940061), (53, 354740), (106, 177370), (212, 88685), (265, 70948), (530, 35474), (1060, 17737)]