51556220

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{5981}}^1$

素因数の和:6421

約数の個数: 24

約数和(自身を含む): 108537408

約数和(自身を除く): 56981188

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 4310, 5981, 8620, 11962, 23924, 29905, 59810, 119620, 2577811, 5155622, 10311244, 12889055, 25778110, 51556220]

約数ペア:

[(1, 51556220), (2, 25778110), (4, 12889055), (5, 10311244), (10, 5155622), (20, 2577811), (431, 119620), (862, 59810), (1724, 29905), (2155, 23924), (4310, 11962), (5981, 8620)]