79999025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{9907}}^1$

素因数の和:9953

約数の個数: 24

約数和(自身を含む): 110573280

約数和(自身を除く): 30574255

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 8075, 9907, 49535, 168419, 188233, 247675, 842095, 941165, 3199961, 4210475, 4705825, 15999805, 79999025]

約数ペア:

[(1, 79999025), (5, 15999805), (17, 4705825), (19, 4210475), (25, 3199961), (85, 941165), (95, 842095), (323, 247675), (425, 188233), (475, 168419), (1615, 49535), (8075, 9907)]