201112780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{3557}}^1$

素因数の和:3834

約数の個数: 48

約数和(自身を含む): 462653856

約数和(自身を除く): 261541076

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 257, 514, 1028, 1285, 2570, 2827, 3557, 5140, 5654, 7114, 11308, 14135, 14228, 17785, 28270, 35570, 39127, 56540, 71140, 78254, 156508, 195635, 391270, 782540, 914149, 1828298, 3656596, 4570745, 9141490, 10055639, 18282980, 20111278, 40222556, 50278195, 100556390, 201112780]

約数ペア:

[(1, 201112780), (2, 100556390), (4, 50278195), (5, 40222556), (10, 20111278), (11, 18282980), (20, 10055639), (22, 9141490), (44, 4570745), (55, 3656596), (110, 1828298), (220, 914149), (257, 782540), (514, 391270), (1028, 195635), (1285, 156508), (2570, 78254), (2827, 71140), (3557, 56540), (5140, 39127), (5654, 35570), (7114, 28270), (11308, 17785), (14135, 14228)]