1805020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{12893}}^1$

素因数の和:12909

約数の個数: 24

約数和(自身を含む): 4332384

約数和(自身を除く): 2527364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 12893, 25786, 51572, 64465, 90251, 128930, 180502, 257860, 361004, 451255, 902510, 1805020]

約数ペア:

[(1, 1805020), (2, 902510), (4, 451255), (5, 361004), (7, 257860), (10, 180502), (14, 128930), (20, 90251), (28, 64465), (35, 51572), (70, 25786), (140, 12893)]