18488275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{349}}^1$

素因数の和:535

約数の個数: 24

約数和(自身を含む): 24911600

約数和(自身を除く): 6423325

約数列:

[1, 5, 13, 25, 65, 163, 325, 349, 815, 1745, 2119, 4075, 4537, 8725, 10595, 22685, 52975, 56887, 113425, 284435, 739531, 1422175, 3697655, 18488275]

約数ペア:

[(1, 18488275), (5, 3697655), (13, 1422175), (25, 739531), (65, 284435), (163, 113425), (325, 56887), (349, 52975), (815, 22685), (1745, 10595), (2119, 8725), (4075, 4537)]