30991005

素因数分解:

$3^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1109}}^1$

素因数の和:1152

約数の個数: 48

約数和(自身を含む): 58181760

約数和(自身を除く): 27190755

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 243, 345, 405, 621, 1035, 1109, 1215, 1863, 3105, 3327, 5545, 5589, 9315, 9981, 16635, 25507, 27945, 29943, 49905, 76521, 89829, 127535, 149715, 229563, 269487, 382605, 449145, 688689, 1147815, 1347435, 2066067, 3443445, 6198201, 10330335, 30991005]

約数ペア:

[(1, 30991005), (3, 10330335), (5, 6198201), (9, 3443445), (15, 2066067), (23, 1347435), (27, 1147815), (45, 688689), (69, 449145), (81, 382605), (115, 269487), (135, 229563), (207, 149715), (243, 127535), (345, 89829), (405, 76521), (621, 49905), (1035, 29943), (1109, 27945), (1215, 25507), (1863, 16635), (3105, 9981), (3327, 9315), (5545, 5589)]