18505220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9161}}^1$

素因数の和:9271

約数の個数: 24

約数和(自身を含む): 39250008

約数和(自身を除く): 20744788

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 9161, 18322, 36644, 45805, 91610, 183220, 925261, 1850522, 3701044, 4626305, 9252610, 18505220]

約数ペア:

[(1, 18505220), (2, 9252610), (4, 4626305), (5, 3701044), (10, 1850522), (20, 925261), (101, 183220), (202, 91610), (404, 45805), (505, 36644), (1010, 18322), (2020, 9161)]