27881480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63367}}^1$

素因数の和:63389

約数の個数: 32

約数和(自身を含む): 68437440

約数和(自身を除く): 40555960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 63367, 126734, 253468, 316835, 506936, 633670, 697037, 1267340, 1394074, 2534680, 2788148, 3485185, 5576296, 6970370, 13940740, 27881480]

約数ペア:

[(1, 27881480), (2, 13940740), (4, 6970370), (5, 5576296), (8, 3485185), (10, 2788148), (11, 2534680), (20, 1394074), (22, 1267340), (40, 697037), (44, 633670), (55, 506936), (88, 316835), (110, 253468), (220, 126734), (440, 63367)]