10399995

素因数分解:

$3^4\times 5^1\times {\mathrm{25679}}^1$

素因数の和:25696

約数の個数: 20

約数和(自身を含む): 18643680

約数和(自身を除く): 8243685

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 25679, 77037, 128395, 231111, 385185, 693333, 1155555, 2079999, 3466665, 10399995]

約数ペア:

[(1, 10399995), (3, 3466665), (5, 2079999), (9, 1155555), (15, 693333), (27, 385185), (45, 231111), (81, 128395), (135, 77037), (405, 25679)]