89402020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{32159}}^1$

素因数の和:32307

約数の個数: 24

約数和(自身を含む): 189100800

約数和(自身を除く): 99698780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 32159, 64318, 128636, 160795, 321590, 643180, 4470101, 8940202, 17880404, 22350505, 44701010, 89402020]

約数ペア:

[(1, 89402020), (2, 44701010), (4, 22350505), (5, 17880404), (10, 8940202), (20, 4470101), (139, 643180), (278, 321590), (556, 160795), (695, 128636), (1390, 64318), (2780, 32159)]