289488385

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 369515520

約数和(自身を除く): 80027135

約数列:

[1, 5, 31, 53, 131, 155, 265, 269, 655, 1345, 1643, 4061, 6943, 8215, 8339, 14257, 20305, 34715, 35239, 41695, 71285, 176195, 215233, 441967, 1076165, 1092409, 1867667, 2209835, 5462045, 9338335, 57897677, 289488385]

約数ペア:

[(1, 289488385), (5, 57897677), (31, 9338335), (53, 5462045), (131, 2209835), (155, 1867667), (265, 1092409), (269, 1076165), (655, 441967), (1345, 215233), (1643, 176195), (4061, 71285), (6943, 41695), (8215, 35239), (8339, 34715), (14257, 20305)]