156680440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{79939}}^1$

素因数の和:79964

約数の個数: 48

約数和(自身を含む): 410092200

約数和(自身を除く): 253411760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 79939, 159878, 319756, 399695, 559573, 639512, 799390, 1119146, 1598780, 2238292, 2797865, 3197560, 3917011, 4476584, 5595730, 7834022, 11191460, 15668044, 19585055, 22382920, 31336088, 39170110, 78340220, 156680440]

約数ペア:

[(1, 156680440), (2, 78340220), (4, 39170110), (5, 31336088), (7, 22382920), (8, 19585055), (10, 15668044), (14, 11191460), (20, 7834022), (28, 5595730), (35, 4476584), (40, 3917011), (49, 3197560), (56, 2797865), (70, 2238292), (98, 1598780), (140, 1119146), (196, 799390), (245, 639512), (280, 559573), (392, 399695), (490, 319756), (980, 159878), (1960, 79939)]