28418125

素因数分解:

$5^4\times {\mathrm{41}}^1\times {\mathrm{1109}}^1$

素因数の和:1170

約数の個数: 20

約数和(自身を含む): 36410220

約数和(自身を除く): 7992095

約数列:

[1, 5, 25, 41, 125, 205, 625, 1025, 1109, 5125, 5545, 25625, 27725, 45469, 138625, 227345, 693125, 1136725, 5683625, 28418125]

約数ペア:

[(1, 28418125), (5, 5683625), (25, 1136725), (41, 693125), (125, 227345), (205, 138625), (625, 45469), (1025, 27725), (1109, 25625), (5125, 5545)]