61877120

素因数分解:

$2^7\times 5^1\times {\mathrm{109}}^1\times {\mathrm{887}}^1$

素因数の和:1015

約数の個数: 64

約数和(自身を含む): 149450400

約数和(自身を除く): 87573280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 320, 436, 545, 640, 872, 887, 1090, 1744, 1774, 2180, 3488, 3548, 4360, 4435, 6976, 7096, 8720, 8870, 13952, 14192, 17440, 17740, 28384, 34880, 35480, 56768, 69760, 70960, 96683, 113536, 141920, 193366, 283840, 386732, 483415, 567680, 773464, 966830, 1546928, 1933660, 3093856, 3867320, 6187712, 7734640, 12375424, 15469280, 30938560, 61877120]

約数ペア:

[(1, 61877120), (2, 30938560), (4, 15469280), (5, 12375424), (8, 7734640), (10, 6187712), (16, 3867320), (20, 3093856), (32, 1933660), (40, 1546928), (64, 966830), (80, 773464), (109, 567680), (128, 483415), (160, 386732), (218, 283840), (320, 193366), (436, 141920), (545, 113536), (640, 96683), (872, 70960), (887, 69760), (1090, 56768), (1744, 35480), (1774, 34880), (2180, 28384), (3488, 17740), (3548, 17440), (4360, 14192), (4435, 13952), (6976, 8870), (7096, 8720)]