209302520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{106787}}^1$

素因数の和:106812

約数の個数: 48

約数和(自身を含む): 547822440

約数和(自身を除く): 338519920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 106787, 213574, 427148, 533935, 747509, 854296, 1067870, 1495018, 2135740, 2990036, 3737545, 4271480, 5232563, 5980072, 7475090, 10465126, 14950180, 20930252, 26162815, 29900360, 41860504, 52325630, 104651260, 209302520]

約数ペア:

[(1, 209302520), (2, 104651260), (4, 52325630), (5, 41860504), (7, 29900360), (8, 26162815), (10, 20930252), (14, 14950180), (20, 10465126), (28, 7475090), (35, 5980072), (40, 5232563), (49, 4271480), (56, 3737545), (70, 2990036), (98, 2135740), (140, 1495018), (196, 1067870), (245, 854296), (280, 747509), (392, 533935), (490, 427148), (980, 213574), (1960, 106787)]