69920415

素因数分解:

$3^4\times 5^1\times {\mathrm{172643}}^1$

素因数の和:172660

約数の個数: 20

約数和(自身を含む): 125339544

約数和(自身を除く): 55419129

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 172643, 517929, 863215, 1553787, 2589645, 4661361, 7768935, 13984083, 23306805, 69920415]

約数ペア:

[(1, 69920415), (3, 23306805), (5, 13984083), (9, 7768935), (15, 4661361), (27, 2589645), (45, 1553787), (81, 863215), (135, 517929), (405, 172643)]