1563315280

素因数分解:

$2^4\times 5^1\times {\mathrm{19541441}}^1$

素因数の和:19541454

約数の個数: 20

約数和(自身を含む): 3634708212

約数和(自身を除く): 2071392932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 19541441, 39082882, 78165764, 97707205, 156331528, 195414410, 312663056, 390828820, 781657640, 1563315280]

約数ペア:

[(1, 1563315280), (2, 781657640), (4, 390828820), (5, 312663056), (8, 195414410), (10, 156331528), (16, 97707205), (20, 78165764), (40, 39082882), (80, 19541441)]