20474290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4153}}^1$

素因数の和:4206

約数の個数: 32

約数和(自身を含む): 40376880

約数和(自身を除く): 19902590

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 290, 493, 986, 2465, 4153, 4930, 8306, 20765, 41530, 70601, 120437, 141202, 240874, 353005, 602185, 706010, 1204370, 2047429, 4094858, 10237145, 20474290]

約数ペア:

[(1, 20474290), (2, 10237145), (5, 4094858), (10, 2047429), (17, 1204370), (29, 706010), (34, 602185), (58, 353005), (85, 240874), (145, 141202), (170, 120437), (290, 70601), (493, 41530), (986, 20765), (2465, 8306), (4153, 4930)]