19097980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1847}}^1$

素因数の和:1914

約数の個数: 48

約数和(自身を含む): 44706816

約数和(自身を除く): 25608836

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 1034, 1847, 2068, 2585, 3694, 5170, 7388, 9235, 10340, 18470, 20317, 36940, 40634, 81268, 86809, 101585, 173618, 203170, 347236, 406340, 434045, 868090, 954899, 1736180, 1909798, 3819596, 4774495, 9548990, 19097980]

約数ペア:

[(1, 19097980), (2, 9548990), (4, 4774495), (5, 3819596), (10, 1909798), (11, 1736180), (20, 954899), (22, 868090), (44, 434045), (47, 406340), (55, 347236), (94, 203170), (110, 173618), (188, 101585), (220, 86809), (235, 81268), (470, 40634), (517, 36940), (940, 20317), (1034, 18470), (1847, 10340), (2068, 9235), (2585, 7388), (3694, 5170)]