128220440

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{8929}}^1$

素因数の和:9299

約数の個数: 32

約数和(自身を含む): 289332000

約数和(自身を除く): 161111560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 718, 1436, 1795, 2872, 3590, 7180, 8929, 14360, 17858, 35716, 44645, 71432, 89290, 178580, 357160, 3205511, 6411022, 12822044, 16027555, 25644088, 32055110, 64110220, 128220440]

約数ペア:

[(1, 128220440), (2, 64110220), (4, 32055110), (5, 25644088), (8, 16027555), (10, 12822044), (20, 6411022), (40, 3205511), (359, 357160), (718, 178580), (1436, 89290), (1795, 71432), (2872, 44645), (3590, 35716), (7180, 17858), (8929, 14360)]