20761380

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{38447}}^1$

素因数の和:38465

約数の個数: 48

約数和(自身を含む): 64592640

約数和(自身を除く): 43831260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 38447, 76894, 115341, 153788, 192235, 230682, 346023, 384470, 461364, 576705, 692046, 768940, 1038069, 1153410, 1384092, 1730115, 2076138, 2306820, 3460230, 4152276, 5190345, 6920460, 10380690, 20761380]

約数ペア:

[(1, 20761380), (2, 10380690), (3, 6920460), (4, 5190345), (5, 4152276), (6, 3460230), (9, 2306820), (10, 2076138), (12, 1730115), (15, 1384092), (18, 1153410), (20, 1038069), (27, 768940), (30, 692046), (36, 576705), (45, 461364), (54, 384470), (60, 346023), (90, 230682), (108, 192235), (135, 153788), (180, 115341), (270, 76894), (540, 38447)]