1385408080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2473943}}^1$

素因数の和:2473963

約数の個数: 40

約数和(自身を含む): 3681228672

約数和(自身を除く): 2295820592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2473943, 4947886, 9895772, 12369715, 17317601, 19791544, 24739430, 34635202, 39583088, 49478860, 69270404, 86588005, 98957720, 138540808, 173176010, 197915440, 277081616, 346352020, 692704040, 1385408080]

約数ペア:

[(1, 1385408080), (2, 692704040), (4, 346352020), (5, 277081616), (7, 197915440), (8, 173176010), (10, 138540808), (14, 98957720), (16, 86588005), (20, 69270404), (28, 49478860), (35, 39583088), (40, 34635202), (56, 24739430), (70, 19791544), (80, 17317601), (112, 12369715), (140, 9895772), (280, 4947886), (560, 2473943)]