20129800

素因数分解:

$2^3\times 5^2\times {\mathrm{100649}}^1$

素因数の和:100665

約数の個数: 24

約数和(自身を含む): 46802250

約数和(自身を除く): 26672450

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 100649, 201298, 402596, 503245, 805192, 1006490, 2012980, 2516225, 4025960, 5032450, 10064900, 20129800]

約数ペア:

[(1, 20129800), (2, 10064900), (4, 5032450), (5, 4025960), (8, 2516225), (10, 2012980), (20, 1006490), (25, 805192), (40, 503245), (50, 402596), (100, 201298), (200, 100649)]