20152208

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1723}}^1$

素因数の和:1791

約数の個数: 40

約数和(自身を含む): 42327648

約数和(自身を除く): 22175440

約数列:

[1, 2, 4, 8, 16, 17, 34, 43, 68, 86, 136, 172, 272, 344, 688, 731, 1462, 1723, 2924, 3446, 5848, 6892, 11696, 13784, 27568, 29291, 58582, 74089, 117164, 148178, 234328, 296356, 468656, 592712, 1185424, 1259513, 2519026, 5038052, 10076104, 20152208]

約数ペア:

[(1, 20152208), (2, 10076104), (4, 5038052), (8, 2519026), (16, 1259513), (17, 1185424), (34, 592712), (43, 468656), (68, 296356), (86, 234328), (136, 148178), (172, 117164), (272, 74089), (344, 58582), (688, 29291), (731, 27568), (1462, 13784), (1723, 11696), (2924, 6892), (3446, 5848)]