72267795

素因数分解:

$3^4\times 5^1\times {\mathrm{178439}}^1$

素因数の和:178456

約数の個数: 20

約数和(自身を含む): 129547440

約数和(自身を除く): 57279645

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 178439, 535317, 892195, 1605951, 2676585, 4817853, 8029755, 14453559, 24089265, 72267795]

約数ペア:

[(1, 72267795), (3, 24089265), (5, 14453559), (9, 8029755), (15, 4817853), (27, 2676585), (45, 1605951), (81, 892195), (135, 535317), (405, 178439)]