39620920

素因数分解:

$2^3\times 5^1\times {\mathrm{990523}}^1$

素因数の和:990534

約数の個数: 16

約数和(自身を含む): 89147160

約数和(自身を除く): 49526240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 990523, 1981046, 3962092, 4952615, 7924184, 9905230, 19810460, 39620920]

約数ペア:

[(1, 39620920), (2, 19810460), (4, 9905230), (5, 7924184), (8, 4952615), (10, 3962092), (20, 1981046), (40, 990523)]