28128465

素因数分解:

$3^6\times 5^1\times {\mathrm{7717}}^1$

素因数の和:7740

約数の個数: 28

約数和(自身を含む): 50614644

約数和(自身を除く): 22486179

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 7717, 23151, 38585, 69453, 115755, 208359, 347265, 625077, 1041795, 1875231, 3125385, 5625693, 9376155, 28128465]

約数ペア:

[(1, 28128465), (3, 9376155), (5, 5625693), (9, 3125385), (15, 1875231), (27, 1041795), (45, 625077), (81, 347265), (135, 208359), (243, 115755), (405, 69453), (729, 38585), (1215, 23151), (3645, 7717)]