289401820

素因数分解:

$2^2\times 5^1\times {\mathrm{937}}^1\times {\mathrm{15443}}^1$

素因数の和:16389

約数の個数: 24

約数和(自身を含む): 608431824

約数和(自身を除く): 319030004

約数列:

[1, 2, 4, 5, 10, 20, 937, 1874, 3748, 4685, 9370, 15443, 18740, 30886, 61772, 77215, 154430, 308860, 14470091, 28940182, 57880364, 72350455, 144700910, 289401820]

約数ペア:

[(1, 289401820), (2, 144700910), (4, 72350455), (5, 57880364), (10, 28940182), (20, 14470091), (937, 308860), (1874, 154430), (3748, 77215), (4685, 61772), (9370, 30886), (15443, 18740)]