201608505

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{640027}}^1$

素因数の和:640045

約数の個数: 24

約数和(自身を含む): 399377472

約数和(自身を除く): 197768967

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 640027, 1920081, 3200135, 4480189, 5760243, 9600405, 13440567, 22400945, 28801215, 40321701, 67202835, 201608505]

約数ペア:

[(1, 201608505), (3, 67202835), (5, 40321701), (7, 28801215), (9, 22400945), (15, 13440567), (21, 9600405), (35, 5760243), (45, 4480189), (63, 3200135), (105, 1920081), (315, 640027)]