19569920

素因数分解:

$2^8\times 5^1\times {\mathrm{15289}}^1$

素因数の和:15310

約数の個数: 36

約数和(自身を含む): 46879140

約数和(自身を除く): 27309220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 15289, 30578, 61156, 76445, 122312, 152890, 244624, 305780, 489248, 611560, 978496, 1223120, 1956992, 2446240, 3913984, 4892480, 9784960, 19569920]

約数ペア:

[(1, 19569920), (2, 9784960), (4, 4892480), (5, 3913984), (8, 2446240), (10, 1956992), (16, 1223120), (20, 978496), (32, 611560), (40, 489248), (64, 305780), (80, 244624), (128, 152890), (160, 122312), (256, 76445), (320, 61156), (640, 30578), (1280, 15289)]