2039985

素因数分解:

$3^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:116

約数の個数: 48

約数和(自身を含む): 3878784

約数和(自身を除く): 1838799

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 73, 81, 115, 135, 207, 219, 243, 345, 365, 405, 621, 657, 1035, 1095, 1215, 1679, 1863, 1971, 3105, 3285, 5037, 5589, 5913, 8395, 9315, 9855, 15111, 17739, 25185, 27945, 29565, 45333, 75555, 88695, 135999, 226665, 407997, 679995, 2039985]

約数ペア:

[(1, 2039985), (3, 679995), (5, 407997), (9, 226665), (15, 135999), (23, 88695), (27, 75555), (45, 45333), (69, 29565), (73, 27945), (81, 25185), (115, 17739), (135, 15111), (207, 9855), (219, 9315), (243, 8395), (345, 5913), (365, 5589), (405, 5037), (621, 3285), (657, 3105), (1035, 1971), (1095, 1863), (1215, 1679)]