20839340

素因数分解:

$2^2\times 5^1\times {\mathrm{859}}^1\times {\mathrm{1213}}^1$

素因数の和:2081

約数の個数: 24

約数和(自身を含む): 43849680

約数和(自身を除く): 23010340

約数列:

[1, 2, 4, 5, 10, 20, 859, 1213, 1718, 2426, 3436, 4295, 4852, 6065, 8590, 12130, 17180, 24260, 1041967, 2083934, 4167868, 5209835, 10419670, 20839340]

約数ペア:

[(1, 20839340), (2, 10419670), (4, 5209835), (5, 4167868), (10, 2083934), (20, 1041967), (859, 24260), (1213, 17180), (1718, 12130), (2426, 8590), (3436, 6065), (4295, 4852)]