256817275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71837}}^1$

素因数の和:71871

約数の個数: 24

約数和(自身を含む): 374132304

約数和(自身を除く): 117315029

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 3575, 71837, 359185, 790207, 933881, 1795925, 3951035, 4669405, 10272691, 19755175, 23347025, 51363455, 256817275]

約数ペア:

[(1, 256817275), (5, 51363455), (11, 23347025), (13, 19755175), (25, 10272691), (55, 4669405), (65, 3951035), (143, 1795925), (275, 933881), (325, 790207), (715, 359185), (3575, 71837)]