2180996840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4956811}}^1$

素因数の和:4956833

約数の個数: 32

約数和(自身を含む): 5353356960

約数和(自身を除く): 3172360120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 4956811, 9913622, 19827244, 24784055, 39654488, 49568110, 54524921, 99136220, 109049842, 198272440, 218099684, 272624605, 436199368, 545249210, 1090498420, 2180996840]

約数ペア:

[(1, 2180996840), (2, 1090498420), (4, 545249210), (5, 436199368), (8, 272624605), (10, 218099684), (11, 198272440), (20, 109049842), (22, 99136220), (40, 54524921), (44, 49568110), (55, 39654488), (88, 24784055), (110, 19827244), (220, 9913622), (440, 4956811)]