31029820

素因数分解:

$2^2\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{1399}}^1$

素因数の和:2517

約数の個数: 24

約数和(自身を含む): 65268000

約数和(自身を除く): 34238180

約数列:

[1, 2, 4, 5, 10, 20, 1109, 1399, 2218, 2798, 4436, 5545, 5596, 6995, 11090, 13990, 22180, 27980, 1551491, 3102982, 6205964, 7757455, 15514910, 31029820]

約数ペア:

[(1, 31029820), (2, 15514910), (4, 7757455), (5, 6205964), (10, 3102982), (20, 1551491), (1109, 27980), (1399, 22180), (2218, 13990), (2798, 11090), (4436, 6995), (5545, 5596)]