205263640

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{52903}}^1$

素因数の和:53011

約数の個数: 32

約数和(自身を含む): 466613280

約数和(自身を除く): 261349640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 52903, 105806, 211612, 264515, 423224, 529030, 1058060, 2116120, 5131591, 10263182, 20526364, 25657955, 41052728, 51315910, 102631820, 205263640]

約数ペア:

[(1, 205263640), (2, 102631820), (4, 51315910), (5, 41052728), (8, 25657955), (10, 20526364), (20, 10263182), (40, 5131591), (97, 2116120), (194, 1058060), (388, 529030), (485, 423224), (776, 264515), (970, 211612), (1940, 105806), (3880, 52903)]