80481680

素因数分解:

$2^4\times 5^1\times {\mathrm{1006021}}^1$

素因数の和:1006034

約数の個数: 20

約数和(自身を含む): 187120092

約数和(自身を除く): 106638412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1006021, 2012042, 4024084, 5030105, 8048168, 10060210, 16096336, 20120420, 40240840, 80481680]

約数ペア:

[(1, 80481680), (2, 40240840), (4, 20120420), (5, 16096336), (8, 10060210), (10, 8048168), (16, 5030105), (20, 4024084), (40, 2012042), (80, 1006021)]