20105728

素因数分解:

$2^9\times {\mathrm{107}}^1\times {\mathrm{367}}^1$

素因数の和:492

約数の個数: 40

約数和(自身を含む): 40658112

約数和(自身を除く): 20552384

約数列:

[1, 2, 4, 8, 16, 32, 64, 107, 128, 214, 256, 367, 428, 512, 734, 856, 1468, 1712, 2936, 3424, 5872, 6848, 11744, 13696, 23488, 27392, 39269, 46976, 54784, 78538, 93952, 157076, 187904, 314152, 628304, 1256608, 2513216, 5026432, 10052864, 20105728]

約数ペア:

[(1, 20105728), (2, 10052864), (4, 5026432), (8, 2513216), (16, 1256608), (32, 628304), (64, 314152), (107, 187904), (128, 157076), (214, 93952), (256, 78538), (367, 54784), (428, 46976), (512, 39269), (734, 27392), (856, 23488), (1468, 13696), (1712, 11744), (2936, 6848), (3424, 5872)]