28850145

素因数分解:

$3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 47295360

約数和(自身を除く): 18445215

約数列:

[1, 3, 5, 15, 101, 137, 139, 303, 411, 417, 505, 685, 695, 1515, 2055, 2085, 13837, 14039, 19043, 41511, 42117, 57129, 69185, 70195, 95215, 207555, 210585, 285645, 1923343, 5770029, 9616715, 28850145]

約数ペア:

[(1, 28850145), (3, 9616715), (5, 5770029), (15, 1923343), (101, 285645), (137, 210585), (139, 207555), (303, 95215), (411, 70195), (417, 69185), (505, 57129), (685, 42117), (695, 41511), (1515, 19043), (2055, 14039), (2085, 13837)]