19215620

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7013}}^1$

素因数の和:7159

約数の個数: 24

約数和(自身を含む): 40653144

約数和(自身を除く): 21437524

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 7013, 14026, 28052, 35065, 70130, 140260, 960781, 1921562, 3843124, 4803905, 9607810, 19215620]

約数ペア:

[(1, 19215620), (2, 9607810), (4, 4803905), (5, 3843124), (10, 1921562), (20, 960781), (137, 140260), (274, 70130), (548, 35065), (685, 28052), (1370, 14026), (2740, 7013)]