61279280

素因数分解:

$2^4\times 5^1\times {\mathrm{765991}}^1$

素因数の和:766004

約数の個数: 20

約数和(自身を含む): 142474512

約数和(自身を除く): 81195232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 765991, 1531982, 3063964, 3829955, 6127928, 7659910, 12255856, 15319820, 30639640, 61279280]

約数ペア:

[(1, 61279280), (2, 30639640), (4, 15319820), (5, 12255856), (8, 7659910), (10, 6127928), (16, 3829955), (20, 3063964), (40, 1531982), (80, 765991)]