20176490960

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5865259}}^1$

素因数の和:5865315

約数の個数: 40

約数和(自身を含む): 48001287840

約数和(自身を除く): 27824796880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 5865259, 11730518, 23461036, 29326295, 46922072, 58652590, 93844144, 117305180, 234610360, 252206137, 469220720, 504412274, 1008824548, 1261030685, 2017649096, 2522061370, 4035298192, 5044122740, 10088245480, 20176490960]

約数ペア:

[(1, 20176490960), (2, 10088245480), (4, 5044122740), (5, 4035298192), (8, 2522061370), (10, 2017649096), (16, 1261030685), (20, 1008824548), (40, 504412274), (43, 469220720), (80, 252206137), (86, 234610360), (172, 117305180), (215, 93844144), (344, 58652590), (430, 46922072), (688, 29326295), (860, 23461036), (1720, 11730518), (3440, 5865259)]