127790480

素因数分解:

$2^4\times 5^1\times {\mathrm{1597381}}^1$

素因数の和:1597394

約数の個数: 20

約数和(自身を含む): 297113052

約数和(自身を除く): 169322572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1597381, 3194762, 6389524, 7986905, 12779048, 15973810, 25558096, 31947620, 63895240, 127790480]

約数ペア:

[(1, 127790480), (2, 63895240), (4, 31947620), (5, 25558096), (8, 15973810), (10, 12779048), (16, 7986905), (20, 6389524), (40, 3194762), (80, 1597381)]