257986175

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{521}}^1\times {\mathrm{683}}^1$

素因数の和:1243

約数の個数: 24

約数和(自身を含む): 332054640

約数和(自身を除く): 74068465

約数列:

[1, 5, 25, 29, 145, 521, 683, 725, 2605, 3415, 13025, 15109, 17075, 19807, 75545, 99035, 355843, 377725, 495175, 1779215, 8896075, 10319447, 51597235, 257986175]

約数ペア:

[(1, 257986175), (5, 51597235), (25, 10319447), (29, 8896075), (145, 1779215), (521, 495175), (683, 377725), (725, 355843), (2605, 99035), (3415, 75545), (13025, 19807), (15109, 17075)]