66505520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19333}}^1$

素因数の和:19389

約数の個数: 40

約数和(自身を含む): 158229456

約数和(自身を除く): 91723936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 19333, 38666, 77332, 96665, 154664, 193330, 309328, 386660, 773320, 831319, 1546640, 1662638, 3325276, 4156595, 6650552, 8313190, 13301104, 16626380, 33252760, 66505520]

約数ペア:

[(1, 66505520), (2, 33252760), (4, 16626380), (5, 13301104), (8, 8313190), (10, 6650552), (16, 4156595), (20, 3325276), (40, 1662638), (43, 1546640), (80, 831319), (86, 773320), (172, 386660), (215, 309328), (344, 193330), (430, 154664), (688, 96665), (860, 77332), (1720, 38666), (3440, 19333)]