9780166395

素因数分解:

$3^4\times 5^1\times {\mathrm{24148559}}^1$

素因数の和:24148576

約数の個数: 20

約数和(自身を含む): 17531854560

約数和(自身を除く): 7751688165

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 24148559, 72445677, 120742795, 217337031, 362228385, 652011093, 1086685155, 1956033279, 3260055465, 9780166395]

約数ペア:

[(1, 9780166395), (3, 3260055465), (5, 1956033279), (9, 1086685155), (15, 652011093), (27, 362228385), (45, 217337031), (81, 120742795), (135, 72445677), (405, 24148559)]