81567615

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{1787}}^1$

素因数の和:1991

約数の個数: 32

約数和(自身を含む): 139034880

約数和(自身を除く): 57467265

約数列:

[1, 3, 5, 15, 17, 51, 85, 179, 255, 537, 895, 1787, 2685, 3043, 5361, 8935, 9129, 15215, 26805, 30379, 45645, 91137, 151895, 319873, 455685, 959619, 1599365, 4798095, 5437841, 16313523, 27189205, 81567615]

約数ペア:

[(1, 81567615), (3, 27189205), (5, 16313523), (15, 5437841), (17, 4798095), (51, 1599365), (85, 959619), (179, 455685), (255, 319873), (537, 151895), (895, 91137), (1787, 45645), (2685, 30379), (3043, 26805), (5361, 15215), (8935, 9129)]