9998020

素因数分解:

$2^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{1319}}^1$

素因数の和:1707

約数の個数: 24

約数和(自身を含む): 21067200

約数和(自身を除く): 11069180

約数列:

[1, 2, 4, 5, 10, 20, 379, 758, 1319, 1516, 1895, 2638, 3790, 5276, 6595, 7580, 13190, 26380, 499901, 999802, 1999604, 2499505, 4999010, 9998020]

約数ペア:

[(1, 9998020), (2, 4999010), (4, 2499505), (5, 1999604), (10, 999802), (20, 499901), (379, 26380), (758, 13190), (1319, 7580), (1516, 6595), (1895, 5276), (2638, 3790)]