131436080

素因数分解:

$2^4\times 5^1\times {\mathrm{1642951}}^1$

素因数の和:1642964

約数の個数: 20

約数和(自身を含む): 305589072

約数和(自身を除く): 174152992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1642951, 3285902, 6571804, 8214755, 13143608, 16429510, 26287216, 32859020, 65718040, 131436080]

約数ペア:

[(1, 131436080), (2, 65718040), (4, 32859020), (5, 26287216), (8, 16429510), (10, 13143608), (16, 8214755), (20, 6571804), (40, 3285902), (80, 1642951)]