19138225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{937}}^1$

素因数の和:1009

約数の個数: 24

約数和(自身を含む): 25588640

約数和(自身を除く): 6450415

約数列:

[1, 5, 19, 25, 43, 95, 215, 475, 817, 937, 1075, 4085, 4685, 17803, 20425, 23425, 40291, 89015, 201455, 445075, 765529, 1007275, 3827645, 19138225]

約数ペア:

[(1, 19138225), (5, 3827645), (19, 1007275), (25, 765529), (43, 445075), (95, 201455), (215, 89015), (475, 40291), (817, 23425), (937, 20425), (1075, 17803), (4085, 4685)]