87987892

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{439}}^1\times {\mathrm{563}}^1$

素因数の和:1095

約数の個数: 24

約数和(自身を含む): 156340800

約数和(自身を除く): 68352908

約数列:

[1, 2, 4, 89, 178, 356, 439, 563, 878, 1126, 1756, 2252, 39071, 50107, 78142, 100214, 156284, 200428, 247157, 494314, 988628, 21996973, 43993946, 87987892]

約数ペア:

[(1, 87987892), (2, 43993946), (4, 21996973), (89, 988628), (178, 494314), (356, 247157), (439, 200428), (563, 156284), (878, 100214), (1126, 78142), (1756, 50107), (2252, 39071)]