201911620

素因数分解:

$2^2\times 5^1\times {\mathrm{2237}}^1\times {\mathrm{4513}}^1$

素因数の和:6759

約数の個数: 24

約数和(自身を含む): 424297944

約数和(自身を除く): 222386324

約数列:

[1, 2, 4, 5, 10, 20, 2237, 4474, 4513, 8948, 9026, 11185, 18052, 22370, 22565, 44740, 45130, 90260, 10095581, 20191162, 40382324, 50477905, 100955810, 201911620]

約数ペア:

[(1, 201911620), (2, 100955810), (4, 50477905), (5, 40382324), (10, 20191162), (20, 10095581), (2237, 90260), (4474, 45130), (4513, 44740), (8948, 22565), (9026, 22370), (11185, 18052)]