51132080

素因数分解:

$2^4\times 5^1\times {\mathrm{639151}}^1$

素因数の和:639164

約数の個数: 20

約数和(自身を含む): 118882272

約数和(自身を除く): 67750192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 639151, 1278302, 2556604, 3195755, 5113208, 6391510, 10226416, 12783020, 25566040, 51132080]

約数ペア:

[(1, 51132080), (2, 25566040), (4, 12783020), (5, 10226416), (8, 6391510), (10, 5113208), (16, 3195755), (20, 2556604), (40, 1278302), (80, 639151)]