18769175

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:347

約数の個数: 24

約数和(自身を含む): 24257376

約数和(自身を除く): 5488201

約数列:

[1, 5, 25, 37, 103, 185, 197, 515, 925, 985, 2575, 3811, 4925, 7289, 19055, 20291, 36445, 95275, 101455, 182225, 507275, 750767, 3753835, 18769175]

約数ペア:

[(1, 18769175), (5, 3753835), (25, 750767), (37, 507275), (103, 182225), (185, 101455), (197, 95275), (515, 36445), (925, 20291), (985, 19055), (2575, 7289), (3811, 4925)]