27919280

素因数分解:

$2^4\times 5^1\times {\mathrm{348991}}^1$

素因数の和:349004

約数の個数: 20

約数和(自身を含む): 64912512

約数和(自身を除く): 36993232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 348991, 697982, 1395964, 1744955, 2791928, 3489910, 5583856, 6979820, 13959640, 27919280]

約数ペア:

[(1, 27919280), (2, 13959640), (4, 6979820), (5, 5583856), (8, 3489910), (10, 2791928), (16, 1744955), (20, 1395964), (40, 697982), (80, 348991)]