27901840

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8111}}^1$

素因数の和:8167

約数の個数: 40

約数和(自身を含む): 66388608

約数和(自身を除く): 38486768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8111, 16222, 32444, 40555, 64888, 81110, 129776, 162220, 324440, 348773, 648880, 697546, 1395092, 1743865, 2790184, 3487730, 5580368, 6975460, 13950920, 27901840]

約数ペア:

[(1, 27901840), (2, 13950920), (4, 6975460), (5, 5580368), (8, 3487730), (10, 2790184), (16, 1743865), (20, 1395092), (40, 697546), (43, 648880), (80, 348773), (86, 324440), (172, 162220), (215, 129776), (344, 81110), (430, 64888), (688, 40555), (860, 32444), (1720, 16222), (3440, 8111)]