20604865280

素因数分解:

$2^8\times 5^1\times {\mathrm{193}}^1\times {\mathrm{83407}}^1$

素因数の和:83621

約数の個数: 72

約数和(自身を含む): 49611412032

約数和(自身を除く): 29006546752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 193, 256, 320, 386, 640, 772, 965, 1280, 1544, 1930, 3088, 3860, 6176, 7720, 12352, 15440, 24704, 30880, 49408, 61760, 83407, 123520, 166814, 247040, 333628, 417035, 667256, 834070, 1334512, 1668140, 2669024, 3336280, 5338048, 6672560, 10676096, 13345120, 16097551, 21352192, 26690240, 32195102, 53380480, 64390204, 80487755, 106760960, 128780408, 160975510, 257560816, 321951020, 515121632, 643902040, 1030243264, 1287804080, 2060486528, 2575608160, 4120973056, 5151216320, 10302432640, 20604865280]

約数ペア:

[(1, 20604865280), (2, 10302432640), (4, 5151216320), (5, 4120973056), (8, 2575608160), (10, 2060486528), (16, 1287804080), (20, 1030243264), (32, 643902040), (40, 515121632), (64, 321951020), (80, 257560816), (128, 160975510), (160, 128780408), (193, 106760960), (256, 80487755), (320, 64390204), (386, 53380480), (640, 32195102), (772, 26690240), (965, 21352192), (1280, 16097551), (1544, 13345120), (1930, 10676096), (3088, 6672560), (3860, 5338048), (6176, 3336280), (7720, 2669024), (12352, 1668140), (15440, 1334512), (24704, 834070), (30880, 667256), (49408, 417035), (61760, 333628), (83407, 247040), (123520, 166814)]