20764728

素因数分解:

$2^3\times 3^3\times {\mathrm{251}}^1\times {\mathrm{383}}^1$

素因数の和:649

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 37296072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 251, 383, 502, 753, 766, 1004, 1149, 1506, 1532, 2008, 2259, 2298, 3012, 3064, 3447, 4518, 4596, 6024, 6777, 6894, 9036, 9192, 10341, 13554, 13788, 18072, 20682, 27108, 27576, 41364, 54216, 82728, 96133, 192266, 288399, 384532, 576798, 769064, 865197, 1153596, 1730394, 2307192, 2595591, 3460788, 5191182, 6921576, 10382364, 20764728]

約数ペア:

[(1, 20764728), (2, 10382364), (3, 6921576), (4, 5191182), (6, 3460788), (8, 2595591), (9, 2307192), (12, 1730394), (18, 1153596), (24, 865197), (27, 769064), (36, 576798), (54, 384532), (72, 288399), (108, 192266), (216, 96133), (251, 82728), (383, 54216), (502, 41364), (753, 27576), (766, 27108), (1004, 20682), (1149, 18072), (1506, 13788), (1532, 13554), (2008, 10341), (2259, 9192), (2298, 9036), (3012, 6894), (3064, 6777), (3447, 6024), (4518, 4596)]