20546480

素因数分解:

$2^4\times 5^1\times {\mathrm{256831}}^1$

素因数の和:256844

約数の個数: 20

約数和(自身を含む): 47770752

約数和(自身を除く): 27224272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 256831, 513662, 1027324, 1284155, 2054648, 2568310, 4109296, 5136620, 10273240, 20546480]

約数ペア:

[(1, 20546480), (2, 10273240), (4, 5136620), (5, 4109296), (8, 2568310), (10, 2054648), (16, 1284155), (20, 1027324), (40, 513662), (80, 256831)]