85909815

素因数分解:

$3^4\times 5^1\times {\mathrm{212123}}^1$

素因数の和:212140

約数の個数: 20

約数和(自身を含む): 154002024

約数和(自身を除く): 68092209

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 212123, 636369, 1060615, 1909107, 3181845, 5727321, 9545535, 17181963, 28636605, 85909815]

約数ペア:

[(1, 85909815), (3, 28636605), (5, 17181963), (9, 9545535), (15, 5727321), (27, 3181845), (45, 1909107), (81, 1060615), (135, 636369), (405, 212123)]