1387925

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1$

素因数の和:138

約数の個数: 36

約数和(自身を含む): 2205216

約数和(自身を除く): 817291

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 77, 103, 175, 245, 275, 385, 515, 539, 721, 1133, 1225, 1925, 2575, 2695, 3605, 5047, 5665, 7931, 13475, 18025, 25235, 28325, 39655, 55517, 126175, 198275, 277585, 1387925]

約数ペア:

[(1, 1387925), (5, 277585), (7, 198275), (11, 126175), (25, 55517), (35, 39655), (49, 28325), (55, 25235), (77, 18025), (103, 13475), (175, 7931), (245, 5665), (275, 5047), (385, 3605), (515, 2695), (539, 2575), (721, 1925), (1133, 1225)]