1978778860

素因数分解:

$2^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{112303}}^1$

素因数の和:113193

約数の個数: 24

約数和(自身を含む): 4160189376

約数和(自身を除く): 2181410516

約数列:

[1, 2, 4, 5, 10, 20, 881, 1762, 3524, 4405, 8810, 17620, 112303, 224606, 449212, 561515, 1123030, 2246060, 98938943, 197877886, 395755772, 494694715, 989389430, 1978778860]

約数ペア:

[(1, 1978778860), (2, 989389430), (4, 494694715), (5, 395755772), (10, 197877886), (20, 98938943), (881, 2246060), (1762, 1123030), (3524, 561515), (4405, 449212), (8810, 224606), (17620, 112303)]