9986320

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2903}}^1$

素因数の和:2959

約数の個数: 40

約数和(自身を含む): 23766336

約数和(自身を除く): 13780016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 2903, 3440, 5806, 11612, 14515, 23224, 29030, 46448, 58060, 116120, 124829, 232240, 249658, 499316, 624145, 998632, 1248290, 1997264, 2496580, 4993160, 9986320]

約数ペア:

[(1, 9986320), (2, 4993160), (4, 2496580), (5, 1997264), (8, 1248290), (10, 998632), (16, 624145), (20, 499316), (40, 249658), (43, 232240), (80, 124829), (86, 116120), (172, 58060), (215, 46448), (344, 29030), (430, 23224), (688, 14515), (860, 11612), (1720, 5806), (2903, 3440)]