199905705

素因数分解:

$3^3\times 5^1\times {\mathrm{1480783}}^1$

素因数の和:1480797

約数の個数: 16

約数和(自身を含む): 355388160

約数和(自身を除く): 155482455

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1480783, 4442349, 7403915, 13327047, 22211745, 39981141, 66635235, 199905705]

約数ペア:

[(1, 199905705), (3, 66635235), (5, 39981141), (9, 22211745), (15, 13327047), (27, 7403915), (45, 4442349), (135, 1480783)]