206090180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{115781}}^1$

素因数の和:115879

約数の個数: 24

約数和(自身を含む): 437655960

約数和(自身を除く): 231565780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 115781, 231562, 463124, 578905, 1157810, 2315620, 10304509, 20609018, 41218036, 51522545, 103045090, 206090180]

約数ペア:

[(1, 206090180), (2, 103045090), (4, 51522545), (5, 41218036), (10, 20609018), (20, 10304509), (89, 2315620), (178, 1157810), (356, 578905), (445, 463124), (890, 231562), (1780, 115781)]