82620920

素因数分解:

$2^3\times 5^1\times {\mathrm{2065523}}^1$

素因数の和:2065534

約数の個数: 16

約数和(自身を含む): 185897160

約数和(自身を除く): 103276240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2065523, 4131046, 8262092, 10327615, 16524184, 20655230, 41310460, 82620920]

約数ペア:

[(1, 82620920), (2, 41310460), (4, 20655230), (5, 16524184), (8, 10327615), (10, 8262092), (20, 4131046), (40, 2065523)]