81628275

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{57283}}^1$

素因数の和:57315

約数の個数: 24

約数和(自身を含む): 142064320

約数和(自身を除く): 60436045

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 57283, 171849, 286415, 859245, 1088377, 1432075, 3265131, 4296225, 5441885, 16325655, 27209425, 81628275]

約数ペア:

[(1, 81628275), (3, 27209425), (5, 16325655), (15, 5441885), (19, 4296225), (25, 3265131), (57, 1432075), (75, 1088377), (95, 859245), (285, 286415), (475, 171849), (1425, 57283)]