80725815

素因数分解:

$3^6\times 5^1\times {\mathrm{22147}}^1$

素因数の和:22170

約数の個数: 28

約数和(自身を含む): 145246584

約数和(自身を除く): 64520769

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 22147, 66441, 110735, 199323, 332205, 597969, 996615, 1793907, 2989845, 5381721, 8969535, 16145163, 26908605, 80725815]

約数ペア:

[(1, 80725815), (3, 26908605), (5, 16145163), (9, 8969535), (15, 5381721), (27, 2989845), (45, 1793907), (81, 996615), (135, 597969), (243, 332205), (405, 199323), (729, 110735), (1215, 66441), (3645, 22147)]