18720712

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1433}}^1$

素因数の和:1533

約数の個数: 32

約数和(自身を含む): 37169280

約数和(自身を除く): 18448568

約数列:

[1, 2, 4, 8, 23, 46, 71, 92, 142, 184, 284, 568, 1433, 1633, 2866, 3266, 5732, 6532, 11464, 13064, 32959, 65918, 101743, 131836, 203486, 263672, 406972, 813944, 2340089, 4680178, 9360356, 18720712]

約数ペア:

[(1, 18720712), (2, 9360356), (4, 4680178), (8, 2340089), (23, 813944), (46, 406972), (71, 263672), (92, 203486), (142, 131836), (184, 101743), (284, 65918), (568, 32959), (1433, 13064), (1633, 11464), (2866, 6532), (3266, 5732)]