205730385

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103123}}^1$

素因数の和:103157

約数の個数: 32

約数和(自身を含む): 395996160

約数和(自身を除く): 190265775

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 103123, 309369, 515615, 721861, 1546845, 1959337, 2165583, 3609305, 5878011, 9796685, 10827915, 13715359, 29390055, 41146077, 68576795, 205730385]

約数ペア:

[(1, 205730385), (3, 68576795), (5, 41146077), (7, 29390055), (15, 13715359), (19, 10827915), (21, 9796685), (35, 5878011), (57, 3609305), (95, 2165583), (105, 1959337), (133, 1546845), (285, 721861), (399, 515615), (665, 309369), (1995, 103123)]