20316940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{145121}}^1$

素因数の和:145137

約数の個数: 24

約数和(自身を含む): 48760992

約数和(自身を除く): 28444052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 145121, 290242, 580484, 725605, 1015847, 1451210, 2031694, 2902420, 4063388, 5079235, 10158470, 20316940]

約数ペア:

[(1, 20316940), (2, 10158470), (4, 5079235), (5, 4063388), (7, 2902420), (10, 2031694), (14, 1451210), (20, 1015847), (28, 725605), (35, 580484), (70, 290242), (140, 145121)]