20420168

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{35951}}^1$

素因数の和:36028

約数の個数: 16

約数和(自身を含む): 38828160

約数和(自身を除く): 18407992

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 35951, 71902, 143804, 287608, 2552521, 5105042, 10210084, 20420168]

約数ペア:

[(1, 20420168), (2, 10210084), (4, 5105042), (8, 2552521), (71, 287608), (142, 143804), (284, 71902), (568, 35951)]