27565291280

素因数分解:

$2^4\times 5^1\times {\mathrm{20681}}^1\times {\mathrm{16661}}^1$

素因数の和:37355

約数の個数: 40

約数和(自身を含む): 64096248024

約数和(自身を除く): 36530956744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 16661, 20681, 33322, 41362, 66644, 82724, 83305, 103405, 133288, 165448, 166610, 206810, 266576, 330896, 333220, 413620, 666440, 827240, 1332880, 1654480, 344566141, 689132282, 1378264564, 1722830705, 2756529128, 3445661410, 5513058256, 6891322820, 13782645640, 27565291280]

約数ペア:

[(1, 27565291280), (2, 13782645640), (4, 6891322820), (5, 5513058256), (8, 3445661410), (10, 2756529128), (16, 1722830705), (20, 1378264564), (40, 689132282), (80, 344566141), (16661, 1654480), (20681, 1332880), (33322, 827240), (41362, 666440), (66644, 413620), (82724, 333220), (83305, 330896), (103405, 266576), (133288, 206810), (165448, 166610)]