208056195

素因数分解:

$3^4\times 5^1\times {\mathrm{513719}}^1$

素因数の和:513736

約数の個数: 20

約数和(自身を含む): 372960720

約数和(自身を除く): 164904525

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 513719, 1541157, 2568595, 4623471, 7705785, 13870413, 23117355, 41611239, 69352065, 208056195]

約数ペア:

[(1, 208056195), (3, 69352065), (5, 41611239), (9, 23117355), (15, 13870413), (27, 7705785), (45, 4623471), (81, 2568595), (135, 1541157), (405, 513719)]