205012960

素因数分解:

$2^5\times 5^1\times {\mathrm{1281331}}^1$

素因数の和:1281346

約数の個数: 24

約数和(自身を含む): 484343496

約数和(自身を除く): 279330536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1281331, 2562662, 5125324, 6406655, 10250648, 12813310, 20501296, 25626620, 41002592, 51253240, 102506480, 205012960]

約数ペア:

[(1, 205012960), (2, 102506480), (4, 51253240), (5, 41002592), (8, 25626620), (10, 20501296), (16, 12813310), (20, 10250648), (32, 6406655), (40, 5125324), (80, 2562662), (160, 1281331)]