1295440

素因数分解:

$2^4\times 5^1\times {\mathrm{16193}}^1$

素因数の和:16206

約数の個数: 20

約数和(自身を含む): 3012084

約数和(自身を除く): 1716644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 16193, 32386, 64772, 80965, 129544, 161930, 259088, 323860, 647720, 1295440]

約数ペア:

[(1, 1295440), (2, 647720), (4, 323860), (5, 259088), (8, 161930), (10, 129544), (16, 80965), (20, 64772), (40, 32386), (80, 16193)]