257375125

素因数分解:

$5^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2749}}^1$

素因数の和:2878

約数の個数: 32

約数和(自身を含む): 370656000

約数和(自身を除く): 113280875

約数列:

[1, 5, 7, 25, 35, 107, 125, 175, 535, 749, 875, 2675, 2749, 3745, 13375, 13745, 18725, 19243, 68725, 93625, 96215, 294143, 343625, 481075, 1470715, 2059001, 2405375, 7353575, 10295005, 36767875, 51475025, 257375125]

約数ペア:

[(1, 257375125), (5, 51475025), (7, 36767875), (25, 10295005), (35, 7353575), (107, 2405375), (125, 2059001), (175, 1470715), (535, 481075), (749, 343625), (875, 294143), (2675, 96215), (2749, 93625), (3745, 68725), (13375, 19243), (13745, 18725)]