20112620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8311}}^1$

素因数の和:8342

約数の個数: 36

約数和(自身を含む): 46430832

約数和(自身を除く): 26318212

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 8311, 16622, 33244, 41555, 83110, 91421, 166220, 182842, 365684, 457105, 914210, 1005631, 1828420, 2011262, 4022524, 5028155, 10056310, 20112620]

約数ペア:

[(1, 20112620), (2, 10056310), (4, 5028155), (5, 4022524), (10, 2011262), (11, 1828420), (20, 1005631), (22, 914210), (44, 457105), (55, 365684), (110, 182842), (121, 166220), (220, 91421), (242, 83110), (484, 41555), (605, 33244), (1210, 16622), (2420, 8311)]