20512990384

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1028117}}^1$

素因数の和:1028197

約数の個数: 40

約数和(自身を含む): 42070588560

約数和(自身を除く): 21557598176

約数列:

[1, 2, 4, 8, 16, 29, 43, 58, 86, 116, 172, 232, 344, 464, 688, 1247, 2494, 4988, 9976, 19952, 1028117, 2056234, 4112468, 8224936, 16449872, 29815393, 44209031, 59630786, 88418062, 119261572, 176836124, 238523144, 353672248, 477046288, 707344496, 1282061899, 2564123798, 5128247596, 10256495192, 20512990384]

約数ペア:

[(1, 20512990384), (2, 10256495192), (4, 5128247596), (8, 2564123798), (16, 1282061899), (29, 707344496), (43, 477046288), (58, 353672248), (86, 238523144), (116, 176836124), (172, 119261572), (232, 88418062), (344, 59630786), (464, 44209031), (688, 29815393), (1247, 16449872), (2494, 8224936), (4988, 4112468), (9976, 2056234), (19952, 1028117)]