20403288

素因数分解:

$2^3\times 3^2\times {\mathrm{251}}^1\times {\mathrm{1129}}^1$

素因数の和:1392

約数の個数: 48

約数和(自身を含む): 55528200

約数和(自身を除く): 35124912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 251, 502, 753, 1004, 1129, 1506, 2008, 2258, 2259, 3012, 3387, 4516, 4518, 6024, 6774, 9032, 9036, 10161, 13548, 18072, 20322, 27096, 40644, 81288, 283379, 566758, 850137, 1133516, 1700274, 2267032, 2550411, 3400548, 5100822, 6801096, 10201644, 20403288]

約数ペア:

[(1, 20403288), (2, 10201644), (3, 6801096), (4, 5100822), (6, 3400548), (8, 2550411), (9, 2267032), (12, 1700274), (18, 1133516), (24, 850137), (36, 566758), (72, 283379), (251, 81288), (502, 40644), (753, 27096), (1004, 20322), (1129, 18072), (1506, 13548), (2008, 10161), (2258, 9036), (2259, 9032), (3012, 6774), (3387, 6024), (4516, 4518)]