28781570

素因数分解:

$2^1\times 5^1\times {\mathrm{719}}^1\times {\mathrm{4003}}^1$

素因数の和:4729

約数の個数: 16

約数和(自身を含む): 51891840

約数和(自身を除く): 23110270

約数列:

[1, 2, 5, 10, 719, 1438, 3595, 4003, 7190, 8006, 20015, 40030, 2878157, 5756314, 14390785, 28781570]

約数ペア:

[(1, 28781570), (2, 14390785), (5, 5756314), (10, 2878157), (719, 40030), (1438, 20015), (3595, 8006), (4003, 7190)]