289319620

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{34361}}^1$

素因数の和:34791

約数の個数: 24

約数和(自身を含む): 609032088

約数和(自身を除く): 319712468

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 4210, 8420, 34361, 68722, 137444, 171805, 343610, 687220, 14465981, 28931962, 57863924, 72329905, 144659810, 289319620]

約数ペア:

[(1, 289319620), (2, 144659810), (4, 72329905), (5, 57863924), (10, 28931962), (20, 14465981), (421, 687220), (842, 343610), (1684, 171805), (2105, 137444), (4210, 68722), (8420, 34361)]