28427325

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{19949}}^1$

素因数の和:19981

約数の個数: 24

約数和(自身を含む): 49476000

約数和(自身を除く): 21048675

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 19949, 59847, 99745, 299235, 379031, 498725, 1137093, 1496175, 1895155, 5685465, 9475775, 28427325]

約数ペア:

[(1, 28427325), (3, 9475775), (5, 5685465), (15, 1895155), (19, 1496175), (25, 1137093), (57, 498725), (75, 379031), (95, 299235), (285, 99745), (475, 59847), (1425, 19949)]