28319985

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 51324624

約数和(自身を除く): 23004639

約数列:

[1, 3, 5, 9, 15, 37, 45, 73, 111, 185, 219, 233, 333, 365, 555, 657, 699, 1095, 1165, 1665, 2097, 2701, 3285, 3495, 8103, 8621, 10485, 13505, 17009, 24309, 25863, 40515, 43105, 51027, 77589, 85045, 121545, 129315, 153081, 255135, 387945, 629333, 765405, 1887999, 3146665, 5663997, 9439995, 28319985]

約数ペア:

[(1, 28319985), (3, 9439995), (5, 5663997), (9, 3146665), (15, 1887999), (37, 765405), (45, 629333), (73, 387945), (111, 255135), (185, 153081), (219, 129315), (233, 121545), (333, 85045), (365, 77589), (555, 51027), (657, 43105), (699, 40515), (1095, 25863), (1165, 24309), (1665, 17009), (2097, 13505), (2701, 10485), (3285, 8621), (3495, 8103)]