18878482820

素因数分解:

$2^2\times 5^1\times {\mathrm{3209}}^1\times {\mathrm{294149}}^1$

素因数の和:297367

約数の個数: 24

約数和(自身を含む): 39657303000

約数和(自身を除く): 20778820180

約数列:

[1, 2, 4, 5, 10, 20, 3209, 6418, 12836, 16045, 32090, 64180, 294149, 588298, 1176596, 1470745, 2941490, 5882980, 943924141, 1887848282, 3775696564, 4719620705, 9439241410, 18878482820]

約数ペア:

[(1, 18878482820), (2, 9439241410), (4, 4719620705), (5, 3775696564), (10, 1887848282), (20, 943924141), (3209, 5882980), (6418, 2941490), (12836, 1470745), (16045, 1176596), (32090, 588298), (64180, 294149)]