208862145

素因数分解:

$3^6\times 5^1\times {\mathrm{57301}}^1$

素因数の和:57324

約数の個数: 28

約数和(自身を含む): 375786516

約数和(自身を除く): 166924371

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 57301, 171903, 286505, 515709, 859515, 1547127, 2578545, 4641381, 7735635, 13924143, 23206905, 41772429, 69620715, 208862145]

約数ペア:

[(1, 208862145), (3, 69620715), (5, 41772429), (9, 23206905), (15, 13924143), (27, 7735635), (45, 4641381), (81, 2578545), (135, 1547127), (243, 859515), (405, 515709), (729, 286505), (1215, 171903), (3645, 57301)]