220858245

素因数分解:

$3^4\times 5^1\times {\mathrm{545329}}^1$

素因数の和:545346

約数の個数: 20

約数和(自身を含む): 395909580

約数和(自身を除く): 175051335

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 545329, 1635987, 2726645, 4907961, 8179935, 14723883, 24539805, 44171649, 73619415, 220858245]

約数ペア:

[(1, 220858245), (3, 73619415), (5, 44171649), (9, 24539805), (15, 14723883), (27, 8179935), (45, 4907961), (81, 2726645), (135, 1635987), (405, 545329)]