77809815

素因数分解:

$3^6\times 5^1\times {\mathrm{21347}}^1$

素因数の和:21370

約数の個数: 28

約数和(自身を含む): 140000184

約数和(自身を除く): 62190369

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 21347, 64041, 106735, 192123, 320205, 576369, 960615, 1729107, 2881845, 5187321, 8645535, 15561963, 25936605, 77809815]

約数ペア:

[(1, 77809815), (3, 25936605), (5, 15561963), (9, 8645535), (15, 5187321), (27, 2881845), (45, 1729107), (81, 960615), (135, 576369), (243, 320205), (405, 192123), (729, 106735), (1215, 64041), (3645, 21347)]