20715225

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{14537}}^1$

素因数の和:14569

約数の個数: 24

約数和(自身を含む): 36054240

約数和(自身を除く): 15339015

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 14537, 43611, 72685, 218055, 276203, 363425, 828609, 1090275, 1381015, 4143045, 6905075, 20715225]

約数ペア:

[(1, 20715225), (3, 6905075), (5, 4143045), (15, 1381015), (19, 1090275), (25, 828609), (57, 363425), (75, 276203), (95, 218055), (285, 72685), (475, 43611), (1425, 14537)]