681250

素因数分解:

$2^1\times 5^5\times {\mathrm{109}}^1$

素因数の和:136

約数の個数: 24

約数和(自身を含む): 1288980

約数和(自身を除く): 607730

約数列:

[1, 2, 5, 10, 25, 50, 109, 125, 218, 250, 545, 625, 1090, 1250, 2725, 3125, 5450, 6250, 13625, 27250, 68125, 136250, 340625, 681250]

約数ペア:

[(1, 681250), (2, 340625), (5, 136250), (10, 68125), (25, 27250), (50, 13625), (109, 6250), (125, 5450), (218, 3125), (250, 2725), (545, 1250), (625, 1090)]