20825425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2579}}^1$

素因数の和:2625

約数の個数: 24

約数和(自身を含む): 28792800

約数和(自身を除く): 7967375

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 2579, 8075, 12895, 43843, 49001, 64475, 219215, 245005, 833017, 1096075, 1225025, 4165085, 20825425]

約数ペア:

[(1, 20825425), (5, 4165085), (17, 1225025), (19, 1096075), (25, 833017), (85, 245005), (95, 219215), (323, 64475), (425, 49001), (475, 43843), (1615, 12895), (2579, 8075)]