87488372

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{409}}^1\times {\mathrm{1009}}^1$

素因数の和:1475

約数の個数: 24

約数和(自身を含む): 156529800

約数和(自身を除く): 69041428

約数列:

[1, 2, 4, 53, 106, 212, 409, 818, 1009, 1636, 2018, 4036, 21677, 43354, 53477, 86708, 106954, 213908, 412681, 825362, 1650724, 21872093, 43744186, 87488372]

約数ペア:

[(1, 87488372), (2, 43744186), (4, 21872093), (53, 1650724), (106, 825362), (212, 412681), (409, 213908), (818, 106954), (1009, 86708), (1636, 53477), (2018, 43354), (4036, 21677)]