131428900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{57143}}^1$

素因数の和:57180

約数の個数: 36

約数和(自身を含む): 297605952

約数和(自身を除く): 166177052

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 230, 460, 575, 1150, 2300, 57143, 114286, 228572, 285715, 571430, 1142860, 1314289, 1428575, 2628578, 2857150, 5257156, 5714300, 6571445, 13142890, 26285780, 32857225, 65714450, 131428900]

約数ペア:

[(1, 131428900), (2, 65714450), (4, 32857225), (5, 26285780), (10, 13142890), (20, 6571445), (23, 5714300), (25, 5257156), (46, 2857150), (50, 2628578), (92, 1428575), (100, 1314289), (115, 1142860), (230, 571430), (460, 285715), (575, 228572), (1150, 114286), (2300, 57143)]