28471340

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{10391}}^1$

素因数の和:10537

約数の個数: 24

約数和(自身を含む): 60232032

約数和(自身を除く): 31760692

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 10391, 20782, 41564, 51955, 103910, 207820, 1423567, 2847134, 5694268, 7117835, 14235670, 28471340]

約数ペア:

[(1, 28471340), (2, 14235670), (4, 7117835), (5, 5694268), (10, 2847134), (20, 1423567), (137, 207820), (274, 103910), (548, 51955), (685, 41564), (1370, 20782), (2740, 10391)]