20370992

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1021}}^1$

素因数の和:1101

約数の個数: 40

約数和(自身を含む): 41820240

約数和(自身を除く): 21449248

約数列:

[1, 2, 4, 8, 16, 29, 43, 58, 86, 116, 172, 232, 344, 464, 688, 1021, 1247, 2042, 2494, 4084, 4988, 8168, 9976, 16336, 19952, 29609, 43903, 59218, 87806, 118436, 175612, 236872, 351224, 473744, 702448, 1273187, 2546374, 5092748, 10185496, 20370992]

約数ペア:

[(1, 20370992), (2, 10185496), (4, 5092748), (8, 2546374), (16, 1273187), (29, 702448), (43, 473744), (58, 351224), (86, 236872), (116, 175612), (172, 118436), (232, 87806), (344, 59218), (464, 43903), (688, 29609), (1021, 19952), (1247, 16336), (2042, 9976), (2494, 8168), (4084, 4988)]