30505815

素因数分解:

$3^4\times 5^1\times {\mathrm{75323}}^1$

素因数の和:75340

約数の個数: 20

約数和(自身を含む): 54685224

約数和(自身を除く): 24179409

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 75323, 225969, 376615, 677907, 1129845, 2033721, 3389535, 6101163, 10168605, 30505815]

約数ペア:

[(1, 30505815), (3, 10168605), (5, 6101163), (9, 3389535), (15, 2033721), (27, 1129845), (45, 677907), (81, 376615), (135, 225969), (405, 75323)]