1284348020

素因数分解:

$2^2\times 5^1\times {\mathrm{64217401}}^1$

素因数の和:64217410

約数の個数: 12

約数和(自身を含む): 2697130884

約数和(自身を除く): 1412782864

約数列:

[1, 2, 4, 5, 10, 20, 64217401, 128434802, 256869604, 321087005, 642174010, 1284348020]

約数ペア:

[(1, 1284348020), (2, 642174010), (4, 321087005), (5, 256869604), (10, 128434802), (20, 64217401)]