72421695

素因数分解:

$3^4\times 5^1\times {\mathrm{178819}}^1$

素因数の和:178836

約数の個数: 20

約数和(自身を含む): 129823320

約数和(自身を除く): 57401625

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 178819, 536457, 894095, 1609371, 2682285, 4828113, 8046855, 14484339, 24140565, 72421695]

約数ペア:

[(1, 72421695), (3, 24140565), (5, 14484339), (9, 8046855), (15, 4828113), (27, 2682285), (45, 1609371), (81, 894095), (135, 536457), (405, 178819)]