27973760

素因数分解:

$2^7\times 5^1\times {\mathrm{109}}^1\times {\mathrm{401}}^1$

素因数の和:529

約数の個数: 64

約数和(自身を含む): 67656600

約数和(自身を除く): 39682840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 320, 401, 436, 545, 640, 802, 872, 1090, 1604, 1744, 2005, 2180, 3208, 3488, 4010, 4360, 6416, 6976, 8020, 8720, 12832, 13952, 16040, 17440, 25664, 32080, 34880, 43709, 51328, 64160, 69760, 87418, 128320, 174836, 218545, 256640, 349672, 437090, 699344, 874180, 1398688, 1748360, 2797376, 3496720, 5594752, 6993440, 13986880, 27973760]

約数ペア:

[(1, 27973760), (2, 13986880), (4, 6993440), (5, 5594752), (8, 3496720), (10, 2797376), (16, 1748360), (20, 1398688), (32, 874180), (40, 699344), (64, 437090), (80, 349672), (109, 256640), (128, 218545), (160, 174836), (218, 128320), (320, 87418), (401, 69760), (436, 64160), (545, 51328), (640, 43709), (802, 34880), (872, 32080), (1090, 25664), (1604, 17440), (1744, 16040), (2005, 13952), (2180, 12832), (3208, 8720), (3488, 8020), (4010, 6976), (4360, 6416)]