28894075

素因数分解:

$5^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{229}}^1$

素因数の和:356

約数の個数: 36

約数和(自身を含む): 42266640

約数和(自身を除く): 13372565

約数列:

[1, 5, 7, 25, 35, 49, 103, 175, 229, 245, 515, 721, 1145, 1225, 1603, 2575, 3605, 5047, 5725, 8015, 11221, 18025, 23587, 25235, 40075, 56105, 117935, 126175, 165109, 280525, 589675, 825545, 1155763, 4127725, 5778815, 28894075]

約数ペア:

[(1, 28894075), (5, 5778815), (7, 4127725), (25, 1155763), (35, 825545), (49, 589675), (103, 280525), (175, 165109), (229, 126175), (245, 117935), (515, 56105), (721, 40075), (1145, 25235), (1225, 23587), (1603, 18025), (2575, 11221), (3605, 8015), (5047, 5725)]