80311905

素因数分解:

$3^4\times 5^1\times {\mathrm{198301}}^1$

素因数の和:198318

約数の個数: 20

約数和(自身を含む): 143967252

約数和(自身を除く): 63655347

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 198301, 594903, 991505, 1784709, 2974515, 5354127, 8923545, 16062381, 26770635, 80311905]

約数ペア:

[(1, 80311905), (3, 26770635), (5, 16062381), (9, 8923545), (15, 5354127), (27, 2974515), (45, 1784709), (81, 991505), (135, 594903), (405, 198301)]