12828080

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3911}}^1$

素因数の和:3965

約数の個数: 40

約数和(自身を含む): 30560544

約数和(自身を除く): 17732464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 3911, 7822, 15644, 19555, 31288, 39110, 62576, 78220, 156440, 160351, 312880, 320702, 641404, 801755, 1282808, 1603510, 2565616, 3207020, 6414040, 12828080]

約数ペア:

[(1, 12828080), (2, 6414040), (4, 3207020), (5, 2565616), (8, 1603510), (10, 1282808), (16, 801755), (20, 641404), (40, 320702), (41, 312880), (80, 160351), (82, 156440), (164, 78220), (205, 62576), (328, 39110), (410, 31288), (656, 19555), (820, 15644), (1640, 7822), (3280, 3911)]