858286540

素因数分解:

$2^2\times 5^1\times {\mathrm{2089}}^1\times {\mathrm{20543}}^1$

素因数の和:22641

約数の個数: 24

約数和(自身を含む): 1803352320

約数和(自身を除く): 945065780

約数列:

[1, 2, 4, 5, 10, 20, 2089, 4178, 8356, 10445, 20543, 20890, 41086, 41780, 82172, 102715, 205430, 410860, 42914327, 85828654, 171657308, 214571635, 429143270, 858286540]

約数ペア:

[(1, 858286540), (2, 429143270), (4, 214571635), (5, 171657308), (10, 85828654), (20, 42914327), (2089, 410860), (4178, 205430), (8356, 102715), (10445, 82172), (20543, 41780), (20890, 41086)]