1296001215

素因数分解:

$3^4\times 5^1\times {\mathrm{3200003}}^1$

素因数の和:3200020

約数の個数: 20

約数和(自身を含む): 2323202904

約数和(自身を除く): 1027201689

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 3200003, 9600009, 16000015, 28800027, 48000045, 86400081, 144000135, 259200243, 432000405, 1296001215]

約数ペア:

[(1, 1296001215), (3, 432000405), (5, 259200243), (9, 144000135), (15, 86400081), (27, 48000045), (45, 28800027), (81, 16000015), (135, 9600009), (405, 3200003)]