20340272

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{109}}^2$

素因数の和:333

約数の個数: 30

約数和(自身を含む): 40145868

約数和(自身を除く): 19805596

約数列:

[1, 2, 4, 8, 16, 107, 109, 214, 218, 428, 436, 856, 872, 1712, 1744, 11663, 11881, 23326, 23762, 46652, 47524, 93304, 95048, 186608, 190096, 1271267, 2542534, 5085068, 10170136, 20340272]

約数ペア:

[(1, 20340272), (2, 10170136), (4, 5085068), (8, 2542534), (16, 1271267), (107, 190096), (109, 186608), (214, 95048), (218, 93304), (428, 47524), (436, 46652), (856, 23762), (872, 23326), (1712, 11881), (1744, 11663)]