55031920

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6311}}^1$

素因数の和:6433

約数の個数: 40

約数和(自身を含む): 129143520

約数和(自身を除く): 74111600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 6311, 8720, 12622, 25244, 31555, 50488, 63110, 100976, 126220, 252440, 504880, 687899, 1375798, 2751596, 3439495, 5503192, 6878990, 11006384, 13757980, 27515960, 55031920]

約数ペア:

[(1, 55031920), (2, 27515960), (4, 13757980), (5, 11006384), (8, 6878990), (10, 5503192), (16, 3439495), (20, 2751596), (40, 1375798), (80, 687899), (109, 504880), (218, 252440), (436, 126220), (545, 100976), (872, 63110), (1090, 50488), (1744, 31555), (2180, 25244), (4360, 12622), (6311, 8720)]