25555280

素因数分解:

$2^4\times 5^1\times {\mathrm{319441}}^1$

素因数の和:319454

約数の個数: 20

約数和(自身を含む): 59416212

約数和(自身を除く): 33860932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 319441, 638882, 1277764, 1597205, 2555528, 3194410, 5111056, 6388820, 12777640, 25555280]

約数ペア:

[(1, 25555280), (2, 12777640), (4, 6388820), (5, 5111056), (8, 3194410), (10, 2555528), (16, 1597205), (20, 1277764), (40, 638882), (80, 319441)]