339985040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{249989}}^1$

素因数の和:250019

約数の個数: 40

約数和(自身を含む): 836966520

約数和(自身を除く): 496981480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 249989, 499978, 999956, 1249945, 1999912, 2499890, 3999824, 4249813, 4999780, 8499626, 9999560, 16999252, 19999120, 21249065, 33998504, 42498130, 67997008, 84996260, 169992520, 339985040]

約数ペア:

[(1, 339985040), (2, 169992520), (4, 84996260), (5, 67997008), (8, 42498130), (10, 33998504), (16, 21249065), (17, 19999120), (20, 16999252), (34, 9999560), (40, 8499626), (68, 4999780), (80, 4249813), (85, 3999824), (136, 2499890), (170, 1999912), (272, 1249945), (340, 999956), (680, 499978), (1360, 249989)]