20734205

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{433}}^1$

素因数の和:656

約数の個数: 16

約数和(自身を含む): 25508784

約数和(自身を除く): 4774579

約数列:

[1, 5, 61, 157, 305, 433, 785, 2165, 9577, 26413, 47885, 67981, 132065, 339905, 4146841, 20734205]

約数ペア:

[(1, 20734205), (5, 4146841), (61, 339905), (157, 132065), (305, 67981), (433, 47885), (785, 26413), (2165, 9577)]