25428190

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{28571}}^1$

素因数の和:28667

約数の個数: 16

約数和(自身を含む): 46286640

約数和(自身を除く): 20858450

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 28571, 57142, 142855, 285710, 2542819, 5085638, 12714095, 25428190]

約数ペア:

[(1, 25428190), (2, 12714095), (5, 5085638), (10, 2542819), (89, 285710), (178, 142855), (445, 57142), (890, 28571)]