204804560

素因数分解:

$2^4\times 5^1\times {\mathrm{2560057}}^1$

素因数の和:2560070

約数の個数: 20

約数和(自身を含む): 476170788

約数和(自身を除く): 271366228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2560057, 5120114, 10240228, 12800285, 20480456, 25600570, 40960912, 51201140, 102402280, 204804560]

約数ペア:

[(1, 204804560), (2, 102402280), (4, 51201140), (5, 40960912), (8, 25600570), (10, 20480456), (16, 12800285), (20, 10240228), (40, 5120114), (80, 2560057)]