20189017856

素因数分解:

$2^8\times 7^1\times {\mathrm{563}}^1\times {\mathrm{20011}}^1$

素因数の和:20597

約数の個数: 72

約数和(自身を含む): 46140307584

約数和(自身を除く): 25951289728

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 563, 896, 1126, 1792, 2252, 3941, 4504, 7882, 9008, 15764, 18016, 20011, 31528, 36032, 40022, 63056, 72064, 80044, 126112, 140077, 144128, 160088, 252224, 280154, 320176, 504448, 560308, 640352, 1008896, 1120616, 1280704, 2241232, 2561408, 4482464, 5122816, 8964928, 11266193, 17929856, 22532386, 35859712, 45064772, 78863351, 90129544, 157726702, 180259088, 315453404, 360518176, 630906808, 721036352, 1261813616, 1442072704, 2523627232, 2884145408, 5047254464, 10094508928, 20189017856]

約数ペア:

[(1, 20189017856), (2, 10094508928), (4, 5047254464), (7, 2884145408), (8, 2523627232), (14, 1442072704), (16, 1261813616), (28, 721036352), (32, 630906808), (56, 360518176), (64, 315453404), (112, 180259088), (128, 157726702), (224, 90129544), (256, 78863351), (448, 45064772), (563, 35859712), (896, 22532386), (1126, 17929856), (1792, 11266193), (2252, 8964928), (3941, 5122816), (4504, 4482464), (7882, 2561408), (9008, 2241232), (15764, 1280704), (18016, 1120616), (20011, 1008896), (31528, 640352), (36032, 560308), (40022, 504448), (63056, 320176), (72064, 280154), (80044, 252224), (126112, 160088), (140077, 144128)]