2640675

素因数分解:

$3^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:407

約数の個数: 24

約数和(自身を含む): 4414896

約数和(自身を除く): 1774221

約数列:

[1, 3, 5, 15, 25, 75, 137, 257, 411, 685, 771, 1285, 2055, 3425, 3855, 6425, 10275, 19275, 35209, 105627, 176045, 528135, 880225, 2640675]

約数ペア:

[(1, 2640675), (3, 880225), (5, 528135), (15, 176045), (25, 105627), (75, 35209), (137, 19275), (257, 10275), (411, 6425), (685, 3855), (771, 3425), (1285, 2055)]