19955275

素因数分解:

$5^2\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:315

約数の個数: 24

約数和(自身を含む): 25623360

約数和(自身を除く): 5668085

約数列:

[1, 5, 25, 59, 83, 163, 295, 415, 815, 1475, 2075, 4075, 4897, 9617, 13529, 24485, 48085, 67645, 122425, 240425, 338225, 798211, 3991055, 19955275]

約数ペア:

[(1, 19955275), (5, 3991055), (25, 798211), (59, 338225), (83, 240425), (163, 122425), (295, 67645), (415, 48085), (815, 24485), (1475, 13529), (2075, 9617), (4075, 4897)]