2559280

素因数分解:

$2^4\times 5^1\times {\mathrm{31991}}^1$

素因数の和:32004

約数の個数: 20

約数和(自身を含む): 5950512

約数和(自身を除く): 3391232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 31991, 63982, 127964, 159955, 255928, 319910, 511856, 639820, 1279640, 2559280]

約数ペア:

[(1, 2559280), (2, 1279640), (4, 639820), (5, 511856), (8, 319910), (10, 255928), (16, 159955), (20, 127964), (40, 63982), (80, 31991)]