20173890940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20585603}}^1$

素因数の和:20585626

約数の個数: 36

約数和(自身を含む): 49281935976

約数和(自身を除く): 29108045036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20585603, 41171206, 82342412, 102928015, 144099221, 205856030, 288198442, 411712060, 576396884, 720496105, 1008694547, 1440992210, 2017389094, 2881984420, 4034778188, 5043472735, 10086945470, 20173890940]

約数ペア:

[(1, 20173890940), (2, 10086945470), (4, 5043472735), (5, 4034778188), (7, 2881984420), (10, 2017389094), (14, 1440992210), (20, 1008694547), (28, 720496105), (35, 576396884), (49, 411712060), (70, 288198442), (98, 205856030), (140, 144099221), (196, 102928015), (245, 82342412), (490, 41171206), (980, 20585603)]