27799221465

素因数分解:

$3^4\times 5^1\times {\mathrm{68640053}}^1$

素因数の和:68640070

約数の個数: 20

約数和(自身を含む): 49832679204

約数和(自身を除く): 22033457739

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 68640053, 205920159, 343200265, 617760477, 1029600795, 1853281431, 3088802385, 5559844293, 9266407155, 27799221465]

約数ペア:

[(1, 27799221465), (3, 9266407155), (5, 5559844293), (9, 3088802385), (15, 1853281431), (27, 1029600795), (45, 617760477), (81, 343200265), (135, 205920159), (405, 68640053)]