16931440

素因数分解:

$2^4\times 5^1\times {\mathrm{211643}}^1$

素因数の和:211656

約数の個数: 20

約数和(自身を含む): 39365784

約数和(自身を除く): 22434344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211643, 423286, 846572, 1058215, 1693144, 2116430, 3386288, 4232860, 8465720, 16931440]

約数ペア:

[(1, 16931440), (2, 8465720), (4, 4232860), (5, 3386288), (8, 2116430), (10, 1693144), (16, 1058215), (20, 846572), (40, 423286), (80, 211643)]