21760880

素因数分解:

$2^4\times 5^1\times {\mathrm{272011}}^1$

素因数の和:272024

約数の個数: 20

約数和(自身を含む): 50594232

約数和(自身を除く): 28833352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 272011, 544022, 1088044, 1360055, 2176088, 2720110, 4352176, 5440220, 10880440, 21760880]

約数ペア:

[(1, 21760880), (2, 10880440), (4, 5440220), (5, 4352176), (8, 2720110), (10, 2176088), (16, 1360055), (20, 1088044), (40, 544022), (80, 272011)]