13180820

素因数分解:

$2^2\times 5^1\times {\mathrm{743}}^1\times {\mathrm{887}}^1$

素因数の和:1639

約数の個数: 24

約数和(自身を含む): 27748224

約数和(自身を除く): 14567404

約数列:

[1, 2, 4, 5, 10, 20, 743, 887, 1486, 1774, 2972, 3548, 3715, 4435, 7430, 8870, 14860, 17740, 659041, 1318082, 2636164, 3295205, 6590410, 13180820]

約数ペア:

[(1, 13180820), (2, 6590410), (4, 3295205), (5, 2636164), (10, 1318082), (20, 659041), (743, 17740), (887, 14860), (1486, 8870), (1774, 7430), (2972, 4435), (3548, 3715)]