19770940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{141221}}^1$

素因数の和:141237

約数の個数: 24

約数和(自身を含む): 47450592

約数和(自身を除く): 27679652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 141221, 282442, 564884, 706105, 988547, 1412210, 1977094, 2824420, 3954188, 4942735, 9885470, 19770940]

約数ペア:

[(1, 19770940), (2, 9885470), (4, 4942735), (5, 3954188), (7, 2824420), (10, 1977094), (14, 1412210), (20, 988547), (28, 706105), (35, 564884), (70, 282442), (140, 141221)]