2788320105

素因数分解:

$3^4\times 5^1\times {\mathrm{6884741}}^1$

素因数の和:6884758

約数の個数: 20

約数和(自身を含む): 4998322692

約数和(自身を除く): 2210002587

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 6884741, 20654223, 34423705, 61962669, 103271115, 185888007, 309813345, 557664021, 929440035, 2788320105]

約数ペア:

[(1, 2788320105), (3, 929440035), (5, 557664021), (9, 309813345), (15, 185888007), (27, 103271115), (45, 61962669), (81, 34423705), (135, 20654223), (405, 6884741)]