18805790

素因数分解:

$2^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{6991}}^1$

素因数の和:7267

約数の個数: 16

約数和(自身を含む): 33981120

約数和(自身を除く): 15175330

約数列:

[1, 2, 5, 10, 269, 538, 1345, 2690, 6991, 13982, 34955, 69910, 1880579, 3761158, 9402895, 18805790]

約数ペア:

[(1, 18805790), (2, 9402895), (5, 3761158), (10, 1880579), (269, 69910), (538, 34955), (1345, 13982), (2690, 6991)]