12650800

素因数分解:

$2^4\times 5^2\times {\mathrm{31627}}^1$

素因数の和:31645

約数の個数: 30

約数和(自身を含む): 30394508

約数和(自身を除く): 17743708

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 31627, 63254, 126508, 158135, 253016, 316270, 506032, 632540, 790675, 1265080, 1581350, 2530160, 3162700, 6325400, 12650800]

約数ペア:

[(1, 12650800), (2, 6325400), (4, 3162700), (5, 2530160), (8, 1581350), (10, 1265080), (16, 790675), (20, 632540), (25, 506032), (40, 316270), (50, 253016), (80, 158135), (100, 126508), (200, 63254), (400, 31627)]