391330365

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{4957}}^1$

素因数の和:5261

約数の個数: 32

約数和(自身を含む): 661595520

約数和(自身を除く): 270265155

約数列:

[1, 3, 5, 15, 19, 57, 95, 277, 285, 831, 1385, 4155, 4957, 5263, 14871, 15789, 24785, 26315, 74355, 78945, 94183, 282549, 470915, 1373089, 1412745, 4119267, 6865445, 20596335, 26088691, 78266073, 130443455, 391330365]

約数ペア:

[(1, 391330365), (3, 130443455), (5, 78266073), (15, 26088691), (19, 20596335), (57, 6865445), (95, 4119267), (277, 1412745), (285, 1373089), (831, 470915), (1385, 282549), (4155, 94183), (4957, 78945), (5263, 74355), (14871, 26315), (15789, 24785)]