204554140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1461101}}^1$

素因数の和:1461117

約数の個数: 24

約数和(自身を含む): 490930272

約数和(自身を除く): 286376132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1461101, 2922202, 5844404, 7305505, 10227707, 14611010, 20455414, 29222020, 40910828, 51138535, 102277070, 204554140]

約数ペア:

[(1, 204554140), (2, 102277070), (4, 51138535), (5, 40910828), (7, 29222020), (10, 20455414), (14, 14611010), (20, 10227707), (28, 7305505), (35, 5844404), (70, 2922202), (140, 1461101)]