128889225

素因数分解:

$3^4\times 5^2\times {\mathrm{63649}}^1$

素因数の和:63671

約数の個数: 30

約数和(自身を含む): 238751150

約数和(自身を除く): 109861925

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 63649, 190947, 318245, 572841, 954735, 1591225, 1718523, 2864205, 4773675, 5155569, 8592615, 14321025, 25777845, 42963075, 128889225]

約数ペア:

[(1, 128889225), (3, 42963075), (5, 25777845), (9, 14321025), (15, 8592615), (25, 5155569), (27, 4773675), (45, 2864205), (75, 1718523), (81, 1591225), (135, 954735), (225, 572841), (405, 318245), (675, 190947), (2025, 63649)]