20590864

素因数分解:

$2^4\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1171}}^1$

素因数の和:1343

約数の個数: 40

約数和(自身を含む): 45923648

約数和(自身を除く): 25332784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 157, 314, 628, 1099, 1171, 1256, 2198, 2342, 2512, 4396, 4684, 8197, 8792, 9368, 16394, 17584, 18736, 32788, 65576, 131152, 183847, 367694, 735388, 1286929, 1470776, 2573858, 2941552, 5147716, 10295432, 20590864]

約数ペア:

[(1, 20590864), (2, 10295432), (4, 5147716), (7, 2941552), (8, 2573858), (14, 1470776), (16, 1286929), (28, 735388), (56, 367694), (112, 183847), (157, 131152), (314, 65576), (628, 32788), (1099, 18736), (1171, 17584), (1256, 16394), (2198, 9368), (2342, 8792), (2512, 8197), (4396, 4684)]