20790403895

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2381}}^1\times {\mathrm{2389}}^1$

素因数の和:4835

約数の個数: 32

約数和(自身を含む): 27053040960

約数和(自身を除く): 6262637065

約数列:

[1, 5, 17, 43, 85, 215, 731, 2381, 2389, 3655, 11905, 11945, 40477, 40613, 102383, 102727, 202385, 203065, 511915, 513635, 1740511, 1746359, 5688209, 8702555, 8731795, 28441045, 96699553, 244592987, 483497765, 1222964935, 4158080779, 20790403895]

約数ペア:

[(1, 20790403895), (5, 4158080779), (17, 1222964935), (43, 483497765), (85, 244592987), (215, 96699553), (731, 28441045), (2381, 8731795), (2389, 8702555), (3655, 5688209), (11905, 1746359), (11945, 1740511), (40477, 513635), (40613, 511915), (102383, 203065), (102727, 202385)]