12861580

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4909}}^1$

素因数の和:5049

約数の個数: 24

約数和(自身を含む): 27221040

約数和(自身を除く): 14359460

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 4909, 9818, 19636, 24545, 49090, 98180, 643079, 1286158, 2572316, 3215395, 6430790, 12861580]

約数ペア:

[(1, 12861580), (2, 6430790), (4, 3215395), (5, 2572316), (10, 1286158), (20, 643079), (131, 98180), (262, 49090), (524, 24545), (655, 19636), (1310, 9818), (2620, 4909)]