81080920

素因数分解:

$2^3\times 5^1\times {\mathrm{2027023}}^1$

素因数の和:2027034

約数の個数: 16

約数和(自身を含む): 182432160

約数和(自身を除く): 101351240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2027023, 4054046, 8108092, 10135115, 16216184, 20270230, 40540460, 81080920]

約数ペア:

[(1, 81080920), (2, 40540460), (4, 20270230), (5, 16216184), (8, 10135115), (10, 8108092), (20, 4054046), (40, 2027023)]