27903560

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16223}}^1$

素因数の和:16277

約数の個数: 32

約数和(自身を含む): 64247040

約数和(自身を除く): 36343480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16223, 32446, 64892, 81115, 129784, 162230, 324460, 648920, 697589, 1395178, 2790356, 3487945, 5580712, 6975890, 13951780, 27903560]

約数ペア:

[(1, 27903560), (2, 13951780), (4, 6975890), (5, 5580712), (8, 3487945), (10, 2790356), (20, 1395178), (40, 697589), (43, 648920), (86, 324460), (172, 162230), (215, 129784), (344, 81115), (430, 64892), (860, 32446), (1720, 16223)]