205622440

素因数分解:

$2^3\times 5^1\times {\mathrm{5140561}}^1$

素因数の和:5140572

約数の個数: 16

約数和(自身を含む): 462650580

約数和(自身を除く): 257028140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5140561, 10281122, 20562244, 25702805, 41124488, 51405610, 102811220, 205622440]

約数ペア:

[(1, 205622440), (2, 102811220), (4, 51405610), (5, 41124488), (8, 25702805), (10, 20562244), (20, 10281122), (40, 5140561)]