42878260

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{15649}}^1$

素因数の和:15795

約数の個数: 24

約数和(自身を含む): 90707400

約数和(自身を除く): 47829140

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 15649, 31298, 62596, 78245, 156490, 312980, 2143913, 4287826, 8575652, 10719565, 21439130, 42878260]

約数ペア:

[(1, 42878260), (2, 21439130), (4, 10719565), (5, 8575652), (10, 4287826), (20, 2143913), (137, 312980), (274, 156490), (548, 78245), (685, 62596), (1370, 31298), (2740, 15649)]