81641025

素因数分解:

$3^2\times 5^2\times {\mathrm{491}}^1\times {\mathrm{739}}^1$

素因数の和:1246

約数の個数: 36

約数和(自身を含む): 146724240

約数和(自身を除く): 65083215

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 491, 739, 1473, 2217, 2455, 3695, 4419, 6651, 7365, 11085, 12275, 18475, 22095, 33255, 36825, 55425, 110475, 166275, 362849, 1088547, 1814245, 3265641, 5442735, 9071225, 16328205, 27213675, 81641025]

約数ペア:

[(1, 81641025), (3, 27213675), (5, 16328205), (9, 9071225), (15, 5442735), (25, 3265641), (45, 1814245), (75, 1088547), (225, 362849), (491, 166275), (739, 110475), (1473, 55425), (2217, 36825), (2455, 33255), (3695, 22095), (4419, 18475), (6651, 12275), (7365, 11085)]