208945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:176

約数の個数: 16

約数和(自身を含む): 285120

約数和(自身を除く): 76175

約数列:

[1, 5, 11, 29, 55, 131, 145, 319, 655, 1441, 1595, 3799, 7205, 18995, 41789, 208945]

約数ペア:

[(1, 208945), (5, 41789), (11, 18995), (29, 7205), (55, 3799), (131, 1595), (145, 1441), (319, 655)]