201620920

素因数分解:

$2^3\times 5^1\times {\mathrm{5040523}}^1$

素因数の和:5040534

約数の個数: 16

約数和(自身を含む): 453647160

約数和(自身を除く): 252026240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5040523, 10081046, 20162092, 25202615, 40324184, 50405230, 100810460, 201620920]

約数ペア:

[(1, 201620920), (2, 100810460), (4, 50405230), (5, 40324184), (8, 25202615), (10, 20162092), (20, 10081046), (40, 5040523)]