128783425

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1979}}^1$

素因数の和:2145

約数の個数: 24

約数和(自身を含む): 169408800

約数和(自身を除く): 40625375

約数列:

[1, 5, 19, 25, 95, 137, 475, 685, 1979, 2603, 3425, 9895, 13015, 37601, 49475, 65075, 188005, 271123, 940025, 1355615, 5151337, 6778075, 25756685, 128783425]

約数ペア:

[(1, 128783425), (5, 25756685), (19, 6778075), (25, 5151337), (95, 1355615), (137, 940025), (475, 271123), (685, 188005), (1979, 65075), (2603, 49475), (3425, 37601), (9895, 13015)]