12540775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{821}}^1$

素因数の和:891

約数の個数: 24

約数和(自身を含む): 17123904

約数和(自身を除く): 4583129

約数列:

[1, 5, 13, 25, 47, 65, 235, 325, 611, 821, 1175, 3055, 4105, 10673, 15275, 20525, 38587, 53365, 192935, 266825, 501631, 964675, 2508155, 12540775]

約数ペア:

[(1, 12540775), (5, 2508155), (13, 964675), (25, 501631), (47, 266825), (65, 192935), (235, 53365), (325, 38587), (611, 20525), (821, 15275), (1175, 10673), (3055, 4105)]