81387645

素因数分解:

$3^1\times 5^1\times {\mathrm{2137}}^1\times {\mathrm{2539}}^1$

素因数の和:4684

約数の個数: 16

約数和(自身を含む): 130332480

約数和(自身を除く): 48944835

約数列:

[1, 3, 5, 15, 2137, 2539, 6411, 7617, 10685, 12695, 32055, 38085, 5425843, 16277529, 27129215, 81387645]

約数ペア:

[(1, 81387645), (3, 27129215), (5, 16277529), (15, 5425843), (2137, 38085), (2539, 32055), (6411, 12695), (7617, 10685)]