55811440

素因数分解:

$2^4\times 5^1\times {\mathrm{697643}}^1$

素因数の和:697656

約数の個数: 20

約数和(自身を含む): 129761784

約数和(自身を除く): 73950344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 697643, 1395286, 2790572, 3488215, 5581144, 6976430, 11162288, 13952860, 27905720, 55811440]

約数ペア:

[(1, 55811440), (2, 27905720), (4, 13952860), (5, 11162288), (8, 6976430), (10, 5581144), (16, 3488215), (20, 2790572), (40, 1395286), (80, 697643)]