28435925

素因数分解:

$5^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{167}}^1$

素因数の和:330

約数の個数: 36

約数和(自身を含む): 41559840

約数和(自身を除く): 13123915

約数列:

[1, 5, 7, 25, 35, 49, 139, 167, 175, 245, 695, 835, 973, 1169, 1225, 3475, 4175, 4865, 5845, 6811, 8183, 23213, 24325, 29225, 34055, 40915, 116065, 162491, 170275, 204575, 580325, 812455, 1137437, 4062275, 5687185, 28435925]

約数ペア:

[(1, 28435925), (5, 5687185), (7, 4062275), (25, 1137437), (35, 812455), (49, 580325), (139, 204575), (167, 170275), (175, 162491), (245, 116065), (695, 40915), (835, 34055), (973, 29225), (1169, 24325), (1225, 23213), (3475, 8183), (4175, 6811), (4865, 5845)]