408076420

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{148933}}^1$

素因数の和:149079

約数の個数: 24

約数和(自身を含む): 863221464

約数和(自身を除く): 455145044

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 148933, 297866, 595732, 744665, 1489330, 2978660, 20403821, 40807642, 81615284, 102019105, 204038210, 408076420]

約数ペア:

[(1, 408076420), (2, 204038210), (4, 102019105), (5, 81615284), (10, 40807642), (20, 20403821), (137, 2978660), (274, 1489330), (548, 744665), (685, 595732), (1370, 297866), (2740, 148933)]