389375

素因数分解:

$5^4\times 7^1\times {\mathrm{89}}^1$

素因数の和:116

約数の個数: 20

約数和(自身を含む): 562320

約数和(自身を除く): 172945

約数列:

[1, 5, 7, 25, 35, 89, 125, 175, 445, 623, 625, 875, 2225, 3115, 4375, 11125, 15575, 55625, 77875, 389375]

約数ペア:

[(1, 389375), (5, 77875), (7, 55625), (25, 15575), (35, 11125), (89, 4375), (125, 3115), (175, 2225), (445, 875), (623, 625)]