19575664

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{769}}^1$

素因数の和:857

約数の個数: 40

約数和(自身を含む): 39910640

約数和(自身を除く): 20334976

約数列:

[1, 2, 4, 8, 16, 37, 43, 74, 86, 148, 172, 296, 344, 592, 688, 769, 1538, 1591, 3076, 3182, 6152, 6364, 12304, 12728, 25456, 28453, 33067, 56906, 66134, 113812, 132268, 227624, 264536, 455248, 529072, 1223479, 2446958, 4893916, 9787832, 19575664]

約数ペア:

[(1, 19575664), (2, 9787832), (4, 4893916), (8, 2446958), (16, 1223479), (37, 529072), (43, 455248), (74, 264536), (86, 227624), (148, 132268), (172, 113812), (296, 66134), (344, 56906), (592, 33067), (688, 28453), (769, 25456), (1538, 12728), (1591, 12304), (3076, 6364), (3182, 6152)]