289005880

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{249143}}^1$

素因数の和:249183

約数の個数: 32

約数和(自身を含む): 672688800

約数和(自身を除く): 383682920

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 249143, 498286, 996572, 1245715, 1993144, 2491430, 4982860, 7225147, 9965720, 14450294, 28900588, 36125735, 57801176, 72251470, 144502940, 289005880]

約数ペア:

[(1, 289005880), (2, 144502940), (4, 72251470), (5, 57801176), (8, 36125735), (10, 28900588), (20, 14450294), (29, 9965720), (40, 7225147), (58, 4982860), (116, 2491430), (145, 1993144), (232, 1245715), (290, 996572), (580, 498286), (1160, 249143)]