81540025

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{16067}}^1$

素因数の和:16113

約数の個数: 24

約数和(自身を含む): 119545920

約数和(自身を除く): 38005895

約数列:

[1, 5, 7, 25, 29, 35, 145, 175, 203, 725, 1015, 5075, 16067, 80335, 112469, 401675, 465943, 562345, 2329715, 2811725, 3261601, 11648575, 16308005, 81540025]

約数ペア:

[(1, 81540025), (5, 16308005), (7, 11648575), (25, 3261601), (29, 2811725), (35, 2329715), (145, 562345), (175, 465943), (203, 401675), (725, 112469), (1015, 80335), (5075, 16067)]