178125040

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{20809}}^1$

素因数の和:20929

約数の個数: 40

約数和(自身を含む): 418031280

約数和(自身を除く): 239906240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 4280, 8560, 20809, 41618, 83236, 104045, 166472, 208090, 332944, 416180, 832360, 1664720, 2226563, 4453126, 8906252, 11132815, 17812504, 22265630, 35625008, 44531260, 89062520, 178125040]

約数ペア:

[(1, 178125040), (2, 89062520), (4, 44531260), (5, 35625008), (8, 22265630), (10, 17812504), (16, 11132815), (20, 8906252), (40, 4453126), (80, 2226563), (107, 1664720), (214, 832360), (428, 416180), (535, 332944), (856, 208090), (1070, 166472), (1712, 104045), (2140, 83236), (4280, 41618), (8560, 20809)]