205656580

素因数分解:

$2^2\times 5^1\times {\mathrm{503}}^1\times {\mathrm{20443}}^1$

素因数の和:20955

約数の個数: 24

約数和(自身を含む): 432758592

約数和(自身を除く): 227102012

約数列:

[1, 2, 4, 5, 10, 20, 503, 1006, 2012, 2515, 5030, 10060, 20443, 40886, 81772, 102215, 204430, 408860, 10282829, 20565658, 41131316, 51414145, 102828290, 205656580]

約数ペア:

[(1, 205656580), (2, 102828290), (4, 51414145), (5, 41131316), (10, 20565658), (20, 10282829), (503, 408860), (1006, 204430), (2012, 102215), (2515, 81772), (5030, 40886), (10060, 20443)]