2213425

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 24

約数和(自身を含む): 2946240

約数和(自身を除く): 732815

約数列:

[1, 5, 25, 29, 43, 71, 145, 215, 355, 725, 1075, 1247, 1775, 2059, 3053, 6235, 10295, 15265, 31175, 51475, 76325, 88537, 442685, 2213425]

約数ペア:

[(1, 2213425), (5, 442685), (25, 88537), (29, 76325), (43, 51475), (71, 31175), (145, 15265), (215, 10295), (355, 6235), (725, 3053), (1075, 2059), (1247, 1775)]