870801220

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{206351}}^1$

素因数の和:206571

約数の個数: 24

約数和(自身を含む): 1837358208

約数和(自身を除く): 966556988

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 206351, 412702, 825404, 1031755, 2063510, 4127020, 43540061, 87080122, 174160244, 217700305, 435400610, 870801220]

約数ペア:

[(1, 870801220), (2, 435400610), (4, 217700305), (5, 174160244), (10, 87080122), (20, 43540061), (211, 4127020), (422, 2063510), (844, 1031755), (1055, 825404), (2110, 412702), (4220, 206351)]