18378425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{293}}^1$

素因数の和:509

約数の個数: 24

約数和(自身を含む): 24753624

約数和(自身を除く): 6375199

約数列:

[1, 5, 13, 25, 65, 193, 293, 325, 965, 1465, 2509, 3809, 4825, 7325, 12545, 19045, 56549, 62725, 95225, 282745, 735137, 1413725, 3675685, 18378425]

約数ペア:

[(1, 18378425), (5, 3675685), (13, 1413725), (25, 735137), (65, 282745), (193, 95225), (293, 62725), (325, 56549), (965, 19045), (1465, 12545), (2509, 7325), (3809, 4825)]