12888800

素因数分解:

$2^5\times 5^2\times {\mathrm{16111}}^1$

素因数の和:16131

約数の個数: 36

約数和(自身を含む): 31466736

約数和(自身を除く): 18577936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 16111, 32222, 64444, 80555, 128888, 161110, 257776, 322220, 402775, 515552, 644440, 805550, 1288880, 1611100, 2577760, 3222200, 6444400, 12888800]

約数ペア:

[(1, 12888800), (2, 6444400), (4, 3222200), (5, 2577760), (8, 1611100), (10, 1288880), (16, 805550), (20, 644440), (25, 515552), (32, 402775), (40, 322220), (50, 257776), (80, 161110), (100, 128888), (160, 80555), (200, 64444), (400, 32222), (800, 16111)]