128898225

素因数分解:

$3^2\times 5^2\times {\mathrm{572881}}^1$

素因数の和:572897

約数の個数: 18

約数和(自身を含む): 230871446

約数和(自身を除く): 101973221

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 572881, 1718643, 2864405, 5155929, 8593215, 14322025, 25779645, 42966075, 128898225]

約数ペア:

[(1, 128898225), (3, 42966075), (5, 25779645), (9, 14322025), (15, 8593215), (25, 5155929), (45, 2864405), (75, 1718643), (225, 572881)]