165651440

素因数分解:

$2^4\times 5^1\times {\mathrm{2070643}}^1$

素因数の和:2070656

約数の個数: 20

約数和(自身を含む): 385139784

約数和(自身を除く): 219488344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2070643, 4141286, 8282572, 10353215, 16565144, 20706430, 33130288, 41412860, 82825720, 165651440]

約数ペア:

[(1, 165651440), (2, 82825720), (4, 41412860), (5, 33130288), (8, 20706430), (10, 16565144), (16, 10353215), (20, 8282572), (40, 4141286), (80, 2070643)]