1428225

素因数分解:

$3^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:289

約数の個数: 24

約数和(自身を含む): 2395680

約数和(自身を除く): 967455

約数列:

[1, 3, 5, 15, 25, 75, 137, 139, 411, 417, 685, 695, 2055, 2085, 3425, 3475, 10275, 10425, 19043, 57129, 95215, 285645, 476075, 1428225]

約数ペア:

[(1, 1428225), (3, 476075), (5, 285645), (15, 95215), (25, 57129), (75, 19043), (137, 10425), (139, 10275), (411, 3475), (417, 3425), (685, 2085), (695, 2055)]