21445936040

素因数分解:

$2^3\times 5^1\times {\mathrm{536148401}}^1$

素因数の和:536148412

約数の個数: 16

約数和(自身を含む): 48253356180

約数和(自身を除く): 26807420140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 536148401, 1072296802, 2144593604, 2680742005, 4289187208, 5361484010, 10722968020, 21445936040]

約数ペア:

[(1, 21445936040), (2, 10722968020), (4, 5361484010), (5, 4289187208), (8, 2680742005), (10, 2144593604), (20, 1072296802), (40, 536148401)]