19955225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{977}}^1$

素因数の和:1049

約数の個数: 24

約数和(自身を含む): 26679840

約数和(自身を除く): 6724615

約数列:

[1, 5, 19, 25, 43, 95, 215, 475, 817, 977, 1075, 4085, 4885, 18563, 20425, 24425, 42011, 92815, 210055, 464075, 798209, 1050275, 3991045, 19955225]

約数ペア:

[(1, 19955225), (5, 3991045), (19, 1050275), (25, 798209), (43, 464075), (95, 210055), (215, 92815), (475, 42011), (817, 24425), (977, 20425), (1075, 18563), (4085, 4885)]