28085325

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{19709}}^1$

素因数の和:19741

約数の個数: 24

約数和(自身を含む): 48880800

約数和(自身を除く): 20795475

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 19709, 59127, 98545, 295635, 374471, 492725, 1123413, 1478175, 1872355, 5617065, 9361775, 28085325]

約数ペア:

[(1, 28085325), (3, 9361775), (5, 5617065), (15, 1872355), (19, 1478175), (25, 1123413), (57, 492725), (75, 374471), (95, 295635), (285, 98545), (475, 59127), (1425, 19709)]