18440125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13411}}^1$

素因数の和:13437

約数の個数: 16

約数和(自身を含む): 25107264

約数和(自身を除く): 6667139

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 13411, 67055, 147521, 335275, 737605, 1676375, 3688025, 18440125]

約数ペア:

[(1, 18440125), (5, 3688025), (11, 1676375), (25, 737605), (55, 335275), (125, 147521), (275, 67055), (1375, 13411)]