4387720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2551}}^1$

素因数の和:2605

約数の個数: 32

約数和(自身を含む): 10105920

約数和(自身を除く): 5718200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 2551, 5102, 10204, 12755, 20408, 25510, 51020, 102040, 109693, 219386, 438772, 548465, 877544, 1096930, 2193860, 4387720]

約数ペア:

[(1, 4387720), (2, 2193860), (4, 1096930), (5, 877544), (8, 548465), (10, 438772), (20, 219386), (40, 109693), (43, 102040), (86, 51020), (172, 25510), (215, 20408), (344, 12755), (430, 10204), (860, 5102), (1720, 2551)]