648825045

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1979}}^1\times {\mathrm{1987}}^1$

素因数の和:3985

約数の個数: 32

約数和(自身を含む): 1133637120

約数和(自身を除く): 484812075

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 1979, 1987, 5937, 5961, 9895, 9935, 21769, 21857, 29685, 29805, 65307, 65571, 108845, 109285, 326535, 327855, 3932273, 11796819, 19661365, 43255003, 58984095, 129765009, 216275015, 648825045]

約数ペア:

[(1, 648825045), (3, 216275015), (5, 129765009), (11, 58984095), (15, 43255003), (33, 19661365), (55, 11796819), (165, 3932273), (1979, 327855), (1987, 326535), (5937, 109285), (5961, 108845), (9895, 65571), (9935, 65307), (21769, 29805), (21857, 29685)]