861875

素因数分解:

$5^4\times 7^1\times {\mathrm{197}}^1$

素因数の和:224

約数の個数: 20

約数和(自身を含む): 1237104

約数和(自身を除く): 375229

約数列:

[1, 5, 7, 25, 35, 125, 175, 197, 625, 875, 985, 1379, 4375, 4925, 6895, 24625, 34475, 123125, 172375, 861875]

約数ペア:

[(1, 861875), (5, 172375), (7, 123125), (25, 34475), (35, 24625), (125, 6895), (175, 4925), (197, 4375), (625, 1379), (875, 985)]