19844560

素因数分解:

$2^4\times 5^1\times {\mathrm{248057}}^1$

素因数の和:248070

約数の個数: 20

約数和(自身を含む): 46138788

約数和(自身を除く): 26294228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 248057, 496114, 992228, 1240285, 1984456, 2480570, 3968912, 4961140, 9922280, 19844560]

約数ペア:

[(1, 19844560), (2, 9922280), (4, 4961140), (5, 3968912), (8, 2480570), (10, 1984456), (16, 1240285), (20, 992228), (40, 496114), (80, 248057)]