78198040

素因数分解:

$2^3\times 5^1\times {\mathrm{1954951}}^1$

素因数の和:1954962

約数の個数: 16

約数和(自身を含む): 175945680

約数和(自身を除く): 97747640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1954951, 3909902, 7819804, 9774755, 15639608, 19549510, 39099020, 78198040]

約数ペア:

[(1, 78198040), (2, 39099020), (4, 19549510), (5, 15639608), (8, 9774755), (10, 7819804), (20, 3909902), (40, 1954951)]