208031920

素因数分解:

$2^4\times 5^1\times {\mathrm{349}}^1\times {\mathrm{7451}}^1$

素因数の和:7813

約数の個数: 40

約数和(自身を含む): 485125200

約数和(自身を除く): 277093280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 349, 698, 1396, 1745, 2792, 3490, 5584, 6980, 7451, 13960, 14902, 27920, 29804, 37255, 59608, 74510, 119216, 149020, 298040, 596080, 2600399, 5200798, 10401596, 13001995, 20803192, 26003990, 41606384, 52007980, 104015960, 208031920]

約数ペア:

[(1, 208031920), (2, 104015960), (4, 52007980), (5, 41606384), (8, 26003990), (10, 20803192), (16, 13001995), (20, 10401596), (40, 5200798), (80, 2600399), (349, 596080), (698, 298040), (1396, 149020), (1745, 119216), (2792, 74510), (3490, 59608), (5584, 37255), (6980, 29804), (7451, 27920), (13960, 14902)]