679396815

素因数分解:

$3^4\times 5^1\times {\mathrm{1677523}}^1$

素因数の和:1677540

約数の個数: 20

約数和(自身を含む): 1217882424

約数和(自身を除く): 538485609

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1677523, 5032569, 8387615, 15097707, 25162845, 45293121, 75488535, 135879363, 226465605, 679396815]

約数ペア:

[(1, 679396815), (3, 226465605), (5, 135879363), (9, 75488535), (15, 45293121), (27, 25162845), (45, 15097707), (81, 8387615), (135, 5032569), (405, 1677523)]