7290025

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{1009}}^1$

素因数の和:1053

約数の個数: 18

約数和(自身を含む): 9612170

約数和(自身を除く): 2322145

約数列:

[1, 5, 17, 25, 85, 289, 425, 1009, 1445, 5045, 7225, 17153, 25225, 85765, 291601, 428825, 1458005, 7290025]

約数ペア:

[(1, 7290025), (5, 1458005), (17, 428825), (25, 291601), (85, 85765), (289, 25225), (425, 17153), (1009, 7225), (1445, 5045)]