81728025

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{691}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 144157440

約数和(自身を除く): 62429415

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 83, 95, 249, 285, 415, 475, 691, 1245, 1425, 1577, 2073, 2075, 3455, 4731, 6225, 7885, 10365, 13129, 17275, 23655, 39387, 39425, 51825, 57353, 65645, 118275, 172059, 196935, 286765, 328225, 860295, 984675, 1089707, 1433825, 3269121, 4301475, 5448535, 16345605, 27242675, 81728025]

約数ペア:

[(1, 81728025), (3, 27242675), (5, 16345605), (15, 5448535), (19, 4301475), (25, 3269121), (57, 1433825), (75, 1089707), (83, 984675), (95, 860295), (249, 328225), (285, 286765), (415, 196935), (475, 172059), (691, 118275), (1245, 65645), (1425, 57353), (1577, 51825), (2073, 39425), (2075, 39387), (3455, 23655), (4731, 17275), (6225, 13129), (7885, 10365)]