12810800

素因数分解:

$2^4\times 5^2\times {\mathrm{32027}}^1$

素因数の和:32045

約数の個数: 30

約数和(自身を含む): 30778908

約数和(自身を除く): 17968108

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 32027, 64054, 128108, 160135, 256216, 320270, 512432, 640540, 800675, 1281080, 1601350, 2562160, 3202700, 6405400, 12810800]

約数ペア:

[(1, 12810800), (2, 6405400), (4, 3202700), (5, 2562160), (8, 1601350), (10, 1281080), (16, 800675), (20, 640540), (25, 512432), (40, 320270), (50, 256216), (80, 160135), (100, 128108), (200, 64054), (400, 32027)]