81206025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{63691}}^1$

素因数の和:63721

約数の個数: 24

約数和(自身を含む): 142160544

約数和(自身を除く): 60954519

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 63691, 191073, 318455, 955365, 1082747, 1592275, 3248241, 4776825, 5413735, 16241205, 27068675, 81206025]

約数ペア:

[(1, 81206025), (3, 27068675), (5, 16241205), (15, 5413735), (17, 4776825), (25, 3248241), (51, 1592275), (75, 1082747), (85, 955365), (255, 318455), (425, 191073), (1275, 63691)]