85551920

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{9811}}^1$

素因数の和:9933

約数の個数: 40

約数和(自身を含む): 200753520

約数和(自身を除く): 115201600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 9811, 19622, 39244, 49055, 78488, 98110, 156976, 196220, 392440, 784880, 1069399, 2138798, 4277596, 5346995, 8555192, 10693990, 17110384, 21387980, 42775960, 85551920]

約数ペア:

[(1, 85551920), (2, 42775960), (4, 21387980), (5, 17110384), (8, 10693990), (10, 8555192), (16, 5346995), (20, 4277596), (40, 2138798), (80, 1069399), (109, 784880), (218, 392440), (436, 196220), (545, 156976), (872, 98110), (1090, 78488), (1744, 49055), (2180, 39244), (4360, 19622), (8720, 9811)]