7971440

素因数分解:

$2^4\times 5^1\times {\mathrm{99643}}^1$

素因数の和:99656

約数の個数: 20

約数和(自身を含む): 18533784

約数和(自身を除く): 10562344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 99643, 199286, 398572, 498215, 797144, 996430, 1594288, 1992860, 3985720, 7971440]

約数ペア:

[(1, 7971440), (2, 3985720), (4, 1992860), (5, 1594288), (8, 996430), (10, 797144), (16, 498215), (20, 398572), (40, 199286), (80, 99643)]