1397725

素因数分解:

$5^2\times 7^3\times {\mathrm{163}}^1$

素因数の和:194

約数の個数: 24

約数和(自身を含む): 2033600

約数和(自身を除く): 635875

約数列:

[1, 5, 7, 25, 35, 49, 163, 175, 245, 343, 815, 1141, 1225, 1715, 4075, 5705, 7987, 8575, 28525, 39935, 55909, 199675, 279545, 1397725]

約数ペア:

[(1, 1397725), (5, 279545), (7, 199675), (25, 55909), (35, 39935), (49, 28525), (163, 8575), (175, 7987), (245, 5705), (343, 4075), (815, 1715), (1141, 1225)]